Random Number Generator
The Random Number Generator creates random numbers within a specified range.
Random Number Generator
What the result means
Each number is independently and uniformly random within the range.
How to use this calculator
- 1Enter the minimum and maximum values.
- 2Enter how many numbers to generate.
- 3Press Calculate.
The formula
The calculation uses a standard, verifiable formula. Here it is in its simplest form.
Random = floor(random() × (max − min + 1)) + min
What each variable means
| Symbol | Name | Description |
|---|---|---|
| min | Minimum | Smallest possible value. |
| max | Maximum | Largest possible value. |
Step-by-step example
Example: 1 to 100, 5 numbers
Min:1Max:100Count:5
- 1Each number is random between 1 and 100
Result
e.g. 42, 17, 89, 3, 65
What changes the result
- Results are different each time.
Edge cases to be aware of
Unusual situations handled correctly
- Min must be less than or equal to max.
Common mistakes
Avoid these errors
- Expecting the same result twice.
Assumptions
- Uniform distribution.
Limitations
- Uses the browser's random number generator.
Frequently asked questions
Are the numbers truly random?+
The generator uses the browser's cryptographic random number generator, which is suitable for most purposes.