What is the Random Number Generator?
The random number generator picks whole numbers between your minimum and maximum. Use it for games, draws, sampling and choosing between options.
How to use the Random Number Generator tool
- Enter Minimum, Maximum and How many numbers.
- The result updates instantly as you type, or press Calculate.
- Use Try an example to see how it works, and Reset to start again.
Formula
Each number is chosen with equal probability from the range using the browser pseudo-random generator.
Worked example
Set a minimum, a maximum and how many numbers you need. Press Calculate again for a fresh set.
Frequently asked questions
Are the numbers truly random?
They are pseudo-random, which is fine for games and draws but not for cryptography.
Can numbers repeat?
Yes. Each number is drawn independently, so repeats can occur.
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Checked by Calcovate · Formula tested against worked examples · Updated 7 Nov 2026 · How we check our calculators.