Random Number Generator
Random integers in any range, with or without repeats.
Reviewed by the Calculation Machine team · How we check our maths
Your values
ⓘ Live results
Results
- Numbers
- 97, 88, 45, 23, 50, 89
- Sorted
- 23, 45, 50, 88, 89, 97
- Range
- 1 to 100 (100 possible)
- Sum
- 392
Quick answer
A random integer between min and max inclusive is floor(random × (max − min + 1)) + min.
Worked example
Worked example
Using the values the calculator loads with.
Inputs
- Minimum1
- Maximum100
- How many numbers6
- Allow repeatsNo — unique numbers
Result
- Numbers50, 74, 11, 43, 23, 13
- Sorted11, 13, 23, 43, 50, 74
- Range1 to 100 (100 possible)
- Sum214
How to use the Random Number Generator
- 1Set the minimum and maximum.
- 2Choose how many numbers you want.
- 3Decide whether repeats are allowed.
Frequently asked questions
Is this truly random?
It uses the browser's pseudo-random generator — fine for games and draws, but not for cryptography or regulated lotteries.
Can I use it for a raffle?
Yes, for informal draws. Use unique numbers so no ticket is picked twice.
About this calculator
- Built and reviewed by the Calculation Machine team · How we build and test calculators
- Report an error