Random Number Generator
Please check your range and count (max must be greater than min).
What Is a Random Number Generator?
A random number generator produces one or more random whole numbers within a range you specify. It's useful for games, giveaways, sampling, lottery-style drawings, or any situation where you need unbiased random selection.
How to Use This Calculator
Enter your minimum and maximum values, choose how many numbers you want, and optionally check "No duplicate numbers" if each result must be unique. Click "Generate" to see your random number(s) instantly.
How Randomness Works Here
This tool uses your browser's built-in random number function, which is suitable for general use like games, contests, and everyday decision-making. It is not designed for cryptographic security or high-stakes gambling applications.
Frequently Asked Questions
Can the minimum and maximum be negative?
Yes, negative numbers are supported for both the minimum and maximum values.
What happens if I ask for more unique numbers than exist in my range?
If "No duplicate numbers" is checked and your requested count exceeds the available numbers in the range, you'll see an error — reduce the count or widen the range.
Is this generator truly random?
It uses a pseudo-random algorithm suitable for everyday use, but it is not cryptographically secure and shouldn't be used for security-sensitive applications.
Can I generate the same number twice on purpose?
Yes, simply leave "No duplicate numbers" unchecked to allow repeats across multiple generated numbers.