Random Number Generator
Random Number Generator: free, instant and private. Both the minimum and maximum can come up, and every whole number between them is equally likely.
How the Random Number Generator works
The Random Number Generator takes Minimum, Maximum and returns the answer instantly — no button to hunt for, no page reload. Both the minimum and maximum can come up, and every whole number between them is equally likely. Each press draws a fresh value in your browser — nothing is sent anywhere.
Enter your own numbers to replace the example values; the result panel updates as you type. Everything runs in this single page, so nothing you enter leaves your device.
Formula used
value = floor(random × (max − min + 1)) + min
| Symbol | Meaning |
|---|---|
| min | lowest possible number (inclusive) |
| max | highest possible number (inclusive) |
Both the minimum and maximum can come up, and every whole number between them is equally likely. Each press draws a fresh value in your browser — nothing is sent anywhere.
Inputs used: Minimum, Maximum.
Worked example
Take the default example — minimum of 1, maximum of 100:
- Random number: 76
Frequently asked questions
- What formula does the Random Number Generator use?
- It uses value = floor(random × (max − min + 1)) + min, where min is the lowest possible number (inclusive); max is the highest possible number (inclusive).
- Is the Random Number Generator free?
- Yes. There is no signup, no usage limit and no watermark — the calculator runs entirely in your browser.
- How do I read the result?
- Both the minimum and maximum can come up, and every whole number between them is equally likely. Each press draws a fresh value in your browser — nothing is sent anywhere.
- Does the Random Number Generator store or send my data?
- No. Every calculation happens locally in the page, so the numbers you type are never uploaded or logged.
- Does it work on a phone and offline?
- Yes — the page is a single lightweight file that adapts to any screen size. Once it has loaded it keeps working without a network connection.