Random Number Generator
Enter values to calculate random number generator with a clear result.
Calculate
Enter values and select Calculate.
How it works
Each integer is chosen uniformly from minimum through maximum, inclusive. For unique results, numbers are sampled without replacement.
Worked examples
- Range 1 to 1, count 1: Always 1
- Range 4 to 4, count 1: Always 4
Frequently asked questions
Is this calculator free?
Yes. You can use it without paying or creating an account.
Does it work on a phone?
Yes. The page adapts to small and large screens.
Can I enter zero?
Where zero is mathematically valid, the calculator accepts it.
What happens if I enter an invalid value?
You will see a clear message explaining what to correct.
Does the calculation run in my browser?
Yes. The calculator runs with JavaScript on your device.
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Last updated: October 17, 2026