Random Number Generator

This version of the generator creates a random integer. It can deal with very large integers up to a few thousand digits.

Comprehensive Version

This version of the generator can create one or many random integers or decimals. It can deal with very large numbers with up to 999 digits of precision.

A random number is a number chosen from a pool of limited or unlimited numbers that has no discernible pattern for prediction. The pool of numbers is almost always independent from each other. However, the pool of numbers may follow a specific distribution. For example, the height of the students in a school tends to follow a normal distribution around the median height. If the height of a student is picked at random, the picked number has a higher chance to be closer to the median height than being classified as very tall or very short. The random number generators above assume that the numbers generated are independent of each other, and will be evenly spread across the whole range of possible values.

A random number generator, like the ones above, is a device that can generate one or many random numbers within a defined scope. Random number generators can be hardware based or pseudo-random number generators. Hardware based random-number generators can involve the use of a dice, a coin for flipping, or many other devices.

A pseudo-random number generator is an algorithm for generating a sequence of numbers whose properties approximate the properties of sequences of random numbers. Computer based random number generators are almost always pseudo-random number generators. Yet, the numbers generated by pseudo-random number generators are not truly random. Likewise, our generators above are also pseudo-random number generators. The random numbers generated are sufficient for most applications yet they should not be used for cryptographic purposes. True random numbers are based on physical phenomena such as atmospheric noise, thermal noise, and other quantum phenomena. Methods that generate true random numbers also involve compensating for potential biases caused by the measurement process.

Teach yourself statistics

Random Number Generator

Use the Random Number Generator to create a list of random numbers (up to 10,000 numbers), based on your specifications. The numbers you generate appear in the Random Number Table .

For help in using the Random Number Generator, read the Frequently-Asked Questions or review the Sample Problems .

  • Enter a value in each of the first three text boxes.
  • Indicate whether duplicate entries are allowed in the table.
  • Click the Calculate button to create a table of random numbers.

Note:   A seed value of "None" produces new random numbers with each computation. Any other setting produces the same random numbers, until the seed value is changed. The seed allows you to recreate the same random number table time after time.

Random Number Table

Frequently-asked questions.

Instructions: To find the answer to a frequently-asked question, simply click on the question.

What are random numbers?

Random numbers are sets of digits (i.e., 0, 1, 2, 3, 4, 5, 6, 7, 8, 9) arranged in random order. Because they are randomly ordered, no individual digit can be predicted from knowledge of any other digit or group of digits.

What is a random number generator?

A random number generator is a process that produces random numbers . Any random process (e.g., a flip of a coin or the toss of a die) can be used to generate random numbers. Stat Trek's Random Number Generator uses a statistical algorithm to produce random numbers.

What is a random number table?

A random number table is a list of random numbers. Stat Trek's Random Number Generator produces a list of random numbers, based on the following User specifications:

  • The quantity of random numbers desired.
  • The maximum and minimum values of random numbers in the list.
  • Whether or not duplicate random numbers are permitted.

How "random" is Stat Trek's Random Number Generator?

Although no computer algorithm can produce numbers that are truly random, Stat Trek's Random Number Generator produces numbers that are nearly random. Stat Trek's Random Number Generator can be used for most statistical applications (like randomly assigning subjects to treatments in a statistical experiment). However, it should not be used to generate numbers for cryptography.

What are the minimum and maximum values in the Random Number Generator?

The minimum and maximum values set limits on the range of values that might appear in a random number table. The minimum value identifies the smallest number in the range; and the maximum value identifies the largest number. For example, if we set the minimum value equal to 12 and the maximum value equal to 30, the Random Number Generator will produce a table consisting of random arrangements of numbers in the range of 12 to 30.

What does it mean to allow duplicate entries in a random number table?

Stat Trek's Random Number Generator allows Users to permit or prevent the same number from appearing more than once in the random number table. To permit duplicate entries, set the drop-down box labeled "Allow duplicate numbers" equal to True. To prevent duplicate entries, change the setting to False.

Essentially, allowing duplicate entries amounts to sampling with replacement ; preventing duplicate entries amounts to sampling without replacement .

What is a seed?

The seed is a number that controls whether the Random Number Generator produces a new set of random numbers or repeats a particular sequence of random numbers. If the dropdown box labeled "Seed" is set to "None", the Random Number Generator will produce a different set of random numbers each time a random number table is created. On the other hand, if a number is selected for "Seed", the Random Number Generator will produce a set of random numbers based on the value of the Seed. Each time a random number table is created, the Random Number Generator will produce the same set of random numbers, until the Seed value is changed.

Note: The ability of the seed to repeat a random sequence of numbers assumes that other User specifications (i.e., quantity of random numbers, minimum value, maximum value, whether duplicate values are permitted) are constant across replications. The use of a seed is illustrated in Sample Problem 1 .

Warning: The seed capability is provided for Users as a short-term convenience. It allows a User to regenerate the same set of random numbers tomorrow as he/she generated today. However, there is a risk to relying on the seed capability to recreate a particular random number table. From time to time, Stat Trek may change the underlying random number algorithm to more closely approximate true randomization. A newer algorithm will not reproduce random numbers generated by an older algorithm, even with the same seed. Therefore, the safest way to "save" a random number table is to print it out. The algorithm was last changed on 3/11/2022.

Sample Problem

  • They want to assign a number randomly to each of 10 volunteers, so they need 10 entries in the random number table. Therefore, the researchers enter 10 in the text box labeled "How many random numbers?".
  • Since each volunteer will receive one of two treatments, they set the minimum value equal to 1; and the maximum value equal to 2.
  • Since some volunteers will receive the same treatment, the researchers allow duplicate random numbers in the random number table. Therefore, they set the "Allow duplicate entries" dropdown box equal to "True".
  • And finally, they set the Seed value equal to 1. (The number 1 is not special. They could have used any positive integer.)
  • Enter 10 in the text box labeled "How many random numbers?".
  • Set the minimum value equal to 1 and the maximum value equal to 2.
  • Set the "Allow duplicate entries" dropdown box equal to "True".
  • Set the Seed value equal to 1.
  • We want to select 500 families. Therefore, we enter 500 in the text box labeled "How many random numbers?".
  • Since each family has been assigned a number from 1 to 20,000, we set the minimum value equal to 1; and the maximum value equal to 20,000.
  • Since we only want to survey each family once, we don't want duplicate random numbers in our random number table. Therefore, we set the "Allow duplicate entries" dropdown box equal to "False".

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  • Random Number Generator

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random number generator 500

If you're looking to generate random numbers, you've found the correct website. Our Random Number Generator gives you several different options when you need to generate random numbers. The entire process is quite simple. First, pick the number of random numbers you need to be generated, then choose the number range you'd like the random number to be generated between. Once done, click the "Generate Random Numbers" button and they will instantly appear. You can determine a specific range of numbers or you can use one of the several set number generators. These include random numbers between 1 and 10, random numbers between 1 and 100, and random numbers between 1 and 1000. For those who may need to generate negative numbers, we also have the option of random numbers from -100 to 100.

There are a variety of reasons someone might need to use a randomized number generator. They have applications in a wide variety of fields including statistical sampling, cryptography, and computer simulation. For the purpose of visiting this page, however, it's more likely for a much less sophisticated reason. Below you can find some of the more common reasons people are looking to generate random numbers.

If you're having a contest and need to award a prize to a random person in the contest, this can be the perfect tool. Assign each entry a number and then use the random number generator to give you the winner. If you have multiple prizes to give away randomly, simply choose the number needed and click. By generating random numbers you ensure that the prizes are going to random entries so the contest is fair for all.

Choosing Order

If you have a group of people and you need to designate them into a specific order, one way this can be done is to assign each person a number. You can then use the tool to decide the order of each person in the group. For example, if you have 10 people that you need to have randomly lined up, you can assign each a number and then generate a list of random numbers for all ten in the numbers generator. The top number generated would place the person assigned the first spot to that place with the other people in the group moved to the appropriate places from there. This way the numbers generator gives each person a random position.

Picking Numbers

Often there's a reason that you need to pick a random number between a specific set of numbers. This can be done by using the pick your own number option. This allows you to pick the specific number range you need for picking your numbers. Below you can find some of the more common number ranges people are looking to use with this random tool.

  • Pick a number number between 1 and 2
  • Pick a number number between 1 and 3
  • Pick a number number between 1 and 4
  • Pick a number number between 1 and 5
  • Pick a number number between 1 and 6
  • Pick a number number between 1 and 7
  • Pick a number number between 1 and 8
  • Pick a number number between 1 and 9
  • Pick a number number between 1 and 10
  • Pick a number number between 1 and 25
  • Pick a number number between 1 and 50
  • Pick a number number between 1 and 75
  • Pick a number number between 1 and 100
  • Pick a number number between 1 and 500
  • Pick a number number between 1 and 1000

These are a few of many reasons you may want to use this free online number generator. If you have found the random number generator useful, we'd love to hear from you and how you use it. It's through hearing from those who use it that we are able to improve it when we do updates. We'd also love to hear any suggestions you may have to make the tool better for everyone.

Frequently Asked Questions

How random is this random number generator.

As random as we can make it! We use javascript's internal Math.random() function which returns a Psuedo-random number in the range 0 to less than 1. We then just transform that number into an integer. The internals are complicated but rest assured, these numbers are as random as it gets.

What is the minimum number you can use in your Number Generator?

There is no minimum number, you can use 0 or even a negative number. Currently only integers are supported but we'll be adding an option for floating numbers soon.

What is the maximum number you can use in your Number Generator?

The maximum number that you can use in the random number generator is 1000000000 (1 billion)

Do you have a Random Number Generator mobile app?

No, we don't have a mobile application, but our website is 100% mobile friendly.

Other Random Generators

Here you can find all the other Random Generators:

  • Random Word Generator
  • Random Noun Generator
  • Random Synonym Generator
  • Random Verb Generator
  • Random Name Generator
  • Random Adjective Generator
  • Random Sentence Generator
  • Random Phrase Generator
  • Random Paragraph Generator
  • Weird Words
  • Random Letter Generator
  • Cursive Letters
  • Random Password Generator
  • Random Bible Verses
  • Random Pictures
  • Wedding Hashtags Generator
  • Random List
  • Dinner Ideas Generator
  • Breakfast Ideas
  • Yes or No Oracle
  • Pictionary Generator
  • Motivational Quotes
  • Random Questions
  • Random Facts
  • Vocabulary Words
  • Writing Prompts
  • Never Have I Ever Questions
  • Would You Rather Questions
  • Truth or Dare Questions
  • Decision Maker
  • Hangman Words
  • Random Color Generator
  • Random Things to Draw New
  • Random Coloring Pages New
  • Tongue Twisters New

Features of this random number generator:

  • Generate sequence using a loop
  • Speed loop that lets you control the speed of random generation
  • History of generated numbers for both the sequence and the loop
  • Copy numbers to clipboard
  • Delete or Copy History
  • Create favorite random number generators
  • Remembers recently used random number generators
  • Remembers last generated number
  • Use Seed for a Seeded RNG to generate the same sequence again
  • Reset Seed per session or remember the seed for longer
  • Option to allow numbers to repeat in the loop or the sequence
  • Notifies when all numbers in the sequence are generated
  • Auto-stop loop when it has looped through the range of numbers
  • Exclude specific numbers from the list
  • Select odd, even or half for games
  • Show total sum of the random numbers
  • Specific shortcuts for single digit ranges, pin codes, lottery, dice and coins
  • Lucky touch screen that allows you to select lucky numbers using your touch
  • Multiple screens for easy access of presets

Random Number Generator App in Playstore

Get it on Google Play

Number Picker Wheel

Pick a random number by wheel

Tool Settings

Quick Tool Links: Picker Wheel , Team Picker Wheel , Yes No Picker Wheel , Letter Picker Wheel , Country Picker Wheel , Date Picker Wheel , Image Picker Wheel

Number Picker Wheel - Pick Random Number by Spinning Wheel

  • What is Number Picker Wheel?
  • How to Use the Number Generator?
  • Wheel Customization?
  • File Storage - How to Save/Open/Delete File?
  • Create New and Switch Number Wheel
  • Enable Title Section
  • View All Results
  • Full Screen View
  • Types of Action Modes
  • How to Share the App?
  • We Want to Hear Your Feedback
  • Need an Alternative Random Number Generator?

1. What is Number Picker Wheel?

Number Picker Wheel is a random number generator (RNG) tool used to pick a random number by spinning the wheel. This is another specialized spinner of Picker Wheel focusing on a number generator.

Result mode

Flip a coin to make a decision?

Try FlipSimu Coin Flipper->

Picker Wheel logo

Random Numbers:

Random number generator.

Its the core of all randomness. Pick a number or generate a whole sequence of numbers within a minimum and maximum value (inclusive) while including or suppress duplicates. Your device is used to quickly generate these numbers, completely random and unique to you every time.

Change the quantity to one if you just want it to pick a number.

You can switch the presentation to roll some dice instead. Or change gears completely with the phone number generator or random letter generator .

Icon

Tap to spin wheel

Generating a random number between 1-500 is quick and easy with this spinner wheel. Click on the wheel showing the random numbers 1-500 in the middle of the wheel and the job will be done.

You can use the random 1-500 spinner wheel repeatedly and every result is shown in the Results area.

Interactive Wheel: Generate a Random Number 1-500 with a Single Click

Whether you're organising a mid-sized raffle, making decisions for a group, or seeking a dose of randomness for any other reason, our user-friendly wheel offers a simple yet thrilling way to select a number in this specific range.

How to Use the Random Number 1-500 Wheel

It couldn't be more straightforward. Our wheel features 500 individual segments, each labelled with a unique number from 1 to 500. To produce a random number, all you need to do is tap or click on the wheel. It will spin and then slow down, eventually landing on one of the 500 numbers.

Quick and Reliable Results

You don't to worry about using complex algorithms or spreadsheets. Our interactive wheel provides fast, reliable, and genuinely random results at the click of a button, making it a go-to for any number-selection needs.

Why Opt for Our Random Number 1-500 Wheel?

  • User-Friendly Experience: No downloads or technical skills are needed. Our wheel operates seamlessly in your web browser.
  • Versatile Use Cases: Ideal for various applications like drawing lots, decision-making, and even educational purposes.
  • Interactive and Engaging: Our spinnable wheel adds a visually exciting dimension to the simple act of number generation, making it more engaging than traditional methods.
  • Always Accessible: Open 24/7, our online wheel can generate a random number whenever you need one, from any device.
  • Fair and Balanced: Engineered for equal probability, each number from 1 to 500 has an equal chance of being selected.

Our interactive and reliable number picker wheel is your hassle-free, trustworthy solution for generating a random number between 1 and 500. Easy to use and visually stimulating, it's the perfect blend of convenience and functionality. Give it a spin!

Random Number 1-500

calcpark

Random Number Generator: 1-500

Random number generator.

Random Number Generator for any range. Generate cryptographically strong random numbers for free. Our online Random Number Generator enables you to generate a random number between two arbitrary number (for example 1-100, or 20-50). Basically, it works like a dice , where you can determine the number of sides and this way the number of possible outcomes, as well.

Random number between 1 and 500

Similar random number generators, random number between 1 and x, random number between x and 500, link to us.

Random number between 1 - 500

Random Number Generator

Random number between 1 and 500.

Welcome to use this tool to generate 1 random number greater than 1 less than 500, You can click Generate or Start button again to generate Random Number between 1 and 500.if you need to generate other random numbers, you can set the generator parameters to generate the desired number, if there are other places about the generator do not understand, please return to the home page to view the relevant instructions.

Other Random

  • random number between 1 and 2
  • random number between 1 and 3
  • random number between 1 and 4
  • random number between 1 and 5
  • random number between 1 and 6
  • random number between 1 and 7
  • random number between 1 and 8
  • random number between 1 and 9
  • random number between 1 and 10
  • random number between 1 and 20
  • random number between 1 and 30
  • random number between 1 and 50
  • random number between 1 and 100
  • random number between 1 and 500
  • random number between 1 and 1000

Random number generator

Use the wheel of fortune below to generate a random number from 1 to 500

  • Wheel settings
  • Copy & edit wheel

Similar wheels

If you like this wheel, maybe you also like some of our similar random suggestions!

  • Random number between 1 and 3
  • Random number between 1 and 20
  • Random number between 1 and 30
  • Random number between 1 and 40
  • Random number between 500 and 1000

How to use this random decision wheel?

Before spinning, you can change the appearance, sound, and other settings of the wheel to match your style.

Click the Spin button (or the center of the wheel) and the wheel will start turning before landing on a random segment.

Create your own

Do you want to create your own wheel based on this? Click the copy icon to copy the wheel. After that, you can add or edit slices.

Frequently Asked Questions

Is the spinner wheel truly random.

In practice: yes. In theory: no. That sounds confusing, but let us explain! In computer programs, nothing is truly random , but it is pseudo-random because a number generated by a program (algorithm) is by definition not random. That said, for 99% of use cases, pseudo-random numbers are considered random enough.

In short: yes the random spinning wheel is truly random and unbiased. Moreover, it can't be rigged! There is no way you can influence the chances of landing on a segment sooner. Changing the timing settings on the wheel will not influence the randomness in any way.

Is it possible to cheat

No! The wheel result is completely randomized. We do not run any pre-processing steps or other decision-making algorithms. The result the wheel lands on is chosen completely random and can not be rigged.

5 Ways to Generate Random Numbers in Excel

Not every user will have a need for random numbers in Excel. Most people work with fixed numbers and formulas and may have no need for random numbers to appear in their reports.

However, a random number generator does have a huge use when working with different scenarios on a set of data or when performing various statistical analyses.

A financial model may use a stochastic simulation that is dependent on probabilities. The model may need to be run thousands of times, but with the random number generator providing the parameters of each simulation.

Whatever your need for random numbers, Excel has several ways to generate them.

In this post, I’ll show you all the methods you can use to insert random numbers into your workbooks.

Generate Random Numbers with the RAND function

The first way I will show you is the easiest way to generate random values in Excel.

There is a very simple RAND function that requires no parameters and will generate a random number between 0 and 1.

Syntax for the RAND Function

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This function has no required or optional arguments. The function is always entered with an empty set of parenthesis.

This function will generate a decimal random number between 0 and 1, but not including 0 or 1.

Repeated values are possible but unlikely since the RAND function produces numbers from a continuous range of numbers.

The values that are returned will follow a uniform distribution. This means that any number between 0 and 1 is equally likely to be returned.

Generate Random Numbers Between Any Two Numbers

A decimal number between 0 and 1 may not be too useful if you need numbers between 1 and 10.

But you can use a simple formula involving the RAND function to generate random numbers between any two numbers.

In general, you can create a random number between X and Y by using the above formula.

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For example, to generate numbers between 1 and 10 you can use the above formula.

This multiplies the random number generated by 9 and then adds 1 to it. This will produce decimal numbers between 1 and 10.

Generate Random Integer Numbers Between Any Two Numbers

Another possible need you may encounter is to generate random whole numbers between two given numbers. This can also be done using a simple formula.

In general, you can use the above formula to generate random integer numbers between two values X and Y.

random number generator 500

For example, the above formula will create random integer numbers between 1 and 10.

This is the same formula as before, but using the ROUND function to round to zero decimal places.

You can copy this formula down the column on the spreadsheet, and if you keep pressing F9 to re-calculate, you will see various combinations of numbers from 1 to 10.

Since the set of possible numbers is discrete, the random numbers generated may well be duplicated in the list, depending on what the minimum and maximum are of the range.

random number generator 500

This also works for producing negative numbers. Suppose you need to generate random integer numbers between -3 and 4, then the above formula will be what you need.

Multiplying the RAND function by 7 will produce random numbers between 0 and 7. Add -3 to the result and round to zero decimal places, and this will give the range of random numbers of -3 to 4.

Generate Random Numbers using the RANDBETWEEN Function

Excel has a useful function for generating random numbers within a range of an upper and lower number.

This is easier to use than using the RAND function as it includes extra operators to arrive at your specific range.

Syntax for the RANDBETWEEN Function

  • bottom is the lower range for the values to return.
  • top is the upper range for the values to return.

Both of these arguments are required.

This function will produce random integer numbers between the bottom and top values. This function will also return the upper and lower limits as possible values as it’s not strictly between in this function.

Example with the RANDBETWEEN Function

random number generator 500

For example, if you wanted random numbers between -3 and 4, as in the previous example, you can use the above formula.

Note that the RANDBETWEEN function can only produce integer numbers. There is no way of making the function produce decimal numbers. However, it is considerably less complicated than using the RAND function with operators to achieve the same result.

Generate Random Numbers with the RANDARRAY Function

Usually, it’s the case that you don’t want just a single random value but an entire set of random values.

The RANDARRAY function is the perfect solution for this.

It will populate a range of cells with an array of random numbers, which can be very powerful.

This function is only available on the Microsoft 365 version of Excel.

Syntax for the RANDARRAY Function

  • Rows is the number of rows to return.
  • Columns  is the number of columns to return.
  • Min  is the minimum value for the random numbers.
  • Max is the maximum value for the random numbers.
  • Whole_Number is TRUE to return whole numbers, and FALSE to return decimal numbers.

All the arguments are optional for this function.

If no parameters are included, you will get a single random number with decimal places, in the same way as the RAND function.

Example with the RANDARRAY Function

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To generate an array of 4 rows and 3 columns of whole random numbers between 6 and 14 you can use the above formula.

This will produce an array of values. Notice the blue border around the numbers? These are all produced from a single formula!

Note that the top left-hand corner of the array is always anchored on the cell that the formula is in. Pressing F9 to recalculate the spreadsheet will change all the numbers in the array.

If you do not put a minimum or maximum value, the default of 0 to 1 will be used.

The minimum value must be less than the maximum value otherwise there will be a #VALUE! error.

The array will automatically resize if you change either the rows or columns parameters in the RANDARRAY formula. This is why they’re known as dynamic arrays.

Warning : If there is already data in one of the cells in the output range that you have entered, you will get a #SPILL! error.  No data will be overwritten.

Generate Random Numbers with the Analysis Tools Add-In

There is another method that can be used to insert random numbers without using a formula.

You can use an add-in to create random numbers. Excel comes with an Analysis Tool Pak add-in, but you will need to install it before you can use it.

Install the Analysis Toolpak

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Here are the steps to install the Analysis Tool Pak add-in.

  • Click on the File tab in the ribbon.

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  • In the lower left-hand pane of the window, scroll down and click on Options . You can also use the keyboard shortcut Alt , F , T from the spreadsheet window to open the Options window.

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  • In the left-hand pane of the pop-up window, click on Add-Ins.
  • At the bottom of the main window displayed, select Excel Add-ins from the dropdown and click on the Go button.

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  • This will display a pop-up window containing all available add-ins for Excel. Check the box for Analysis ToolPak and then click OK .

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  • On the Excel ribbon, on the Data tab, there is now an extra group called Analysis with one button called Data Analysis .

Generate Random Numbers with the Analysis Toolpak

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Click on the Data Analysis button in the Analysis group.

This will display a pop-up window. Scroll down and select the Random Number Generation option and then click OK .

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A new pop-up window will appear where you can enter your parameters to generate the random numbers.

There are several settings that can be customized.

  • Number of Variables This is the number of columns of random numbers that you want in your output table. If left blank, then all columns will be filled in the output range that you specify.
  • Number of Random Numbers This is the number of rows of random numbers that you want to generate. If left blank, the output range that you specify will be filled.
  • Distribution  You can select several distribution methods from the drop-down such as uniform or normal distribution. Different options will become available in the Parameters section depending on your selection here.
  • Parameters  Enter the values to characterize the distribution selected.
  • Random Seed This is optional and will be the starting point for the algorithm to produce the random numbers. If you use the same seed again, it will produce the same random numbers. If left blank, it will take the seed value from the timer event.
  • Output Range Enter the upper left cell of where the table is to be constructed in the spreadsheet. If you have left the Variables parameter blank, then you will need to specify an entire range. Note that existing data in that range will be overwritten.
  • New Worksheet Ply This option will insert a new worksheet within the workbook and will paste the results at Cell A1. Enter a sheet name in the adjacent box, otherwise, a default name will be used.
  • New Workbook This will create a new workbook and paste the results into cell A1 in the first sheet.

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Press the OK button and Excel will insert the random number according to the selected options.

Notice that unlike the formula methods previously shown, these numbers are hardcoded and will not change when you refresh calculations in the workbook.

Generate Random Numbers with VBA

VBA (Visual Basic for Applications) is the programming language that sits behind the front end of Excel, and this can also be used to generate random numbers.

However, it is more complicated than simply entering a formula into a cell in Excel, and you do need some programming knowledge to use it.

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To open the VBA editor, use the Alt + F11 keyboard shortcut.

In the left-hand pane of the window (Project Explorer), you will see the workbooks that are open (including add-ins) and the sheets available.

On the menu at the top of the window, click on Insert and then click on Module . This will add a module window to the current spreadsheet. Paste or add the following code to the module.

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Press F5 to run this, and a message pop-up will appear in Excel with a random number displayed. Press OK and you will return to the code window.

Run the code again and a different random number will be displayed. The random number will be between 0 and 1, but will not include the values of 0 or 1.

You can also give the Rnd function a parameter, which is a seed for the starting point of the algorithm to produce the random numbers.

If the seed value is set to a negative number or zero, then the same random number will be displayed each time.

Using VBA functions, you can emulate all the functionality of the front-end methods that have been covered in this article.

For example, if you wanted to generate whole random numbers between 3 and 10, then you would use the following above code.

This code multiplies the random number, by 7, and then adds 3 to it, and then rounds to zero decimal places.

Suppose that you then wanted to display your random numbers in the grid. You can do this with the following code.

random number generator 500

This code uses a For Next loop to iterate 5 times through the random number calculation and enter the results in a column of cells starting at cell A1.

Remember that any data already there will be overwritten, and there is no warning or undo feature available. Save any previous work beforehand!

There is also a VBA function called Randomize . You can use this before the Rnd function to reset the seed value to the timer event, or to any parameter given.

Generate Random Numbers without Duplicates or Repeats

You may well have a situation where you want to generate a range of random numbers, but you do not want to see any duplicate values appearing.

You may want to select 3 random numbers between the numbers from 1 to 10, but where each of the 3 selected numbers is unique.

You could generate random numbers with the RANDBETWEEN function and then use the Excel function Remove Duplicates from the ribbon, but this still may not give you all the numbers required.

There are several possible solutions available.

Solution with RANK.EQ and COUNTIF Functions

If you don’t have access to the RANDARRAY function in Excel, then you can use a combination of RANK.EQ and COUNTIF to get unique random numbers.

You can create your random numbers using RANDBETWEEN and then use a formula in the next column to rank them thereby giving you a randomly sorted sequence from 1 to 10.

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In cell B2, enter the above formula . Copy this formula down so that there are 10 rows of random numbers going down to cell B11.

You will notice that some numbers may be duplicated and some are not shown at all.

You can then use the RANK.EQ function to rank them so as to create a sequence from 1 to 10 but that is sorted randomly.

random number generator 500

In cell C2, enter the above formula.

Note that there are absolute references used (the $ signs) so that formula references stay fixed as you copy the formula down.

Copy this formula down to cell C11, and this will display all the numbers between 1 and 10, but in random order.

To explain this formula in more depth, it uses two functions RANK.EQ and COUNTIF .

  • Number is the number that we want to find the rank of in the array.
  • Ref is the array where we want to search for the number.
  • Order is optional and allows you to find the rank in either ascending or descending order. If its omitted then ascending order is used.

The RANK.EQ function returns the rank of a number within an array of numbers.

  • Range is the range that is being searched for instances of the criteria.
  • Criteria is the value to match within the range.

The COUNTIF function counts the number of cells based on a given criterion. In this case, it is counting how many times a given random number has appeared in the list.

For each random number the RANK.EQ function will determine its ranking position relative to the other random numbers. But if the random numbers contain duplicates, then they will create a tied ranking.

The COUNTIF function will compensate for any ties in the ranking and will add one to the rank for each time the random number has previously appeared.

This creates a unique ranking where ties don’t get the same rank.

Since this rank is based on a set of random numbers the result is the same as randomizing a list of numbers from 1 to 10.

Now, if you only want 5 non-repeating numbers, you only need to take the first 5 from the ranking list.

Solution with VBA

You could also use VBA to generate a string of random numbers from 1 to 10 without duplicates.

This code iterates through values from 1 to 5, generating a random number between 1 and 10 each time.

It tests the random number to check if it has already been generated. This is done by concatenating successful numbers into a string and then searching that string to see if the number has already been used.

If it has been found, then it uses the label Repeat to go back and re-generate a new number. This is again tested that it has not already been used. If it is a new number, then it is added to the sheet.

Solution with Dynamic Arrays

If you have dynamic arrays in Excel, then there is a single formula method to avoid repeating values.

Suppose you want to return 5 numbers from the sequence 1 to 10. You want each number selected to be unique.

This can be done using a combination of the SEQUENCE , SORTBY , RANDARRAY , and INDEX functions.

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The above formula creates a sequence of numbers from 1 to 10.

It then sorts them in a random order using the SORTBY function and sorting on a column of random numbers generated by the RANDARRAY function. The effect is to sort the sequence in random order.

Now if you want to get 5 random and unique numbers you only need to take the first 5 numbers from the randomly sorted sequence.

This is exactly what the INDEX function does! This part of the formula will return the first 5 numbers from the randomly sorted sequence.

There are several ways to generate random numbers in Excel.

Whether you need whole numbers, decimals, or a range of random numbers with an upper and lower limit, the facility is available. Excel is extremely versatile on this topic.

However, bear in mind that these numbers are pseudo-random numbers generated by an algorithm.

Although the random number generator passes all the tests of randomness, they are not true random numbers.

To be a truly random number, it would have to be driven by a random event happening outside the computer environment.

For most purposes of constructing general simulations and statistical analysis, the Excel random number generator is considered fit for the purpose.

Have you used any of these methods for generating random numbers in Excel? Do you know any other methods? Let me know in the comments below!

About the Author

John MacDougall

John MacDougall

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Random Sequence Generator

This form allows you to generate randomized sequences of integers. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs.

Part 1: Sequence Boundaries

Smallest value (limit -1,000,000,000)

Largest value (limit +1,000,000,000)

Format in column(s)

The length of the sequence (the largest minus the smallest value plus 1) can be no greater than 10,000.

Part 2: Go!

Be patient! It may take a little while to generate your sequence...

Note: A randomized sequence does not contain duplicates (the numbers are like raffle tickets drawn from a hat). There is also the Integer Generator which generates the numbers independently of each other (like rolls of a die) and where each number can occur more than once.

Random Name Picker

Use this online name picker to draw a random name from a list of names, or to draw several names randomly out of a list. You can use it as a name randomizer for a raffle, team selection, to randomly distribute prizes, etc.

Related randomizers

  • Using the random name picker
  • How to draw multiple random names
  • Is the name picked truly at random?
  • Applications of a random name picker

Selecting prize winners at random

Picking a team at random,     using the random name picker.

To generate a single random name , start by feeding the tool with a list of names, one name per row (where "one name" can consist of first and last name, etc.). Copy/paste from a spreadsheet works very well. Our random name picker can handle up to 10,000 names. Then simply press the "Pick a Random Name" button and let our randomizer do its job. It's work is equivalent to rolling a dice with as many sides as there are names - each one has an equal probability to be picked.

    How to draw multiple random names

You start in similar fashion to how you would draw one random name from a list, but you need to change the default value of the "Number of names to pick" field from 1 to as many as you'd like to select from the provided list. The maximum names the name picker can pick for you in one go is 1,000.

If you picked a lot of names, don't forget that you can easily select them all (Cltr+A on a PC) and them copy and paste as you wish.

    Is the name picked truly at random?

Our software name picker first assigns incremental integer IDs to each name you enter, then uses a robust random number generator to produce a number in the range from minimum to maximum. The RNG algorithm is cryptographically safe, results in an unbiased pick, and can be used instead of a coin, dice, or another more primitive randomizing device (which might actually be biased due to imperfect construction).

The random selector has been tested statistically through simulations so you can be assured it is doing its job of giving each name an equal chance of being picked on any particular draw from the virtual urn / bag of names.

    Applications of a random name picker

There are obviously infinitely many situations where having a name draw generator is useful. Here is a list a few common ones.

If you run a not-for-profit lottery or a charity raffle, you can feed the names of the participants in the random name picker and draw one or more winners this way. The randomizer will ensure everyone has an equal chance to win.

Another common application is when many players need to be randomly distributed across sports teams (or board game / pc game teams, etc.). While our random team generator is the best tool for the job, if there are only two teams to distribute the players among, the picker will also do. Simply enter all names, say 22 for football (soccer), and tell the tool to select 11 names. Those eleven players will comprise one team, while the remaining will make up their opponents.

Cite this randomizer & page

If you'd like to cite this online randomizer resource and information as provided on the page, you can use the following citation: Georgiev G.Z., "Random Name Picker" , [online] Available at: https://www.gigacalculator.com/randomizers/random-name-picker.php URL [Accessed Date: 16 Feb, 2024].

     Random generators

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    Random Sequence Generator. This form allows you to generate randomized sequences of integers. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. Part 1: Sequence Boundaries. Smallest value (limit -1,000,000,000)

  21. Random Name Picker

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