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Home/Math/Random Number Generator
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Math · Updated 2026

Random Number Generator

Generate one or more random numbers within a chosen range — useful for raffles, draws, games and simulations.

Choose the range

Choose the range and how many numbers you want, then press Generate.

=Result
Full embed page →

Standard mathematical formulas. Instant in-browser calculation, no account. Exact results for the values you enter.

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iHow it is calculated

Choose the minimum and maximum, how many numbers you want and whether they are whole. The generator produces pseudo-random values uniformly spread over the range:

number = min + random × (max min)

For a die: min 1, max 6 → a whole number between 1 and 6. For a raffle with 50 tickets: min 1, max 50.

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?Frequently asked questions

How do I generate a random number?

Choose the range (minimum and maximum) and press Generate. The calculator produces a random number within the chosen range.

Can I generate several numbers at once?

Yes. Set the “How many” field and you get a list of random numbers (up to 1000).

How do I get a number between two values?

Enter the minimum and maximum; the generated number is always within this range, including the endpoints for whole numbers.

Are the numbers truly random?

They are pseudo-random, generated by the browser’s algorithm. Fine for games, raffles and simulations, but not for cryptography.

Can I generate decimal numbers?

Yes. Untick “Whole numbers” to get values with decimals within the chosen range.

How do I pick a raffle winner?

Number the participants, set minimum to 1 and maximum to their count, then generate one number — the winner’s position.

How do I simulate a dice roll?

Set minimum 1 and maximum 6 and generate a whole number. For two dice, ask for 2 numbers.

Can the generated numbers repeat?

Yes, each number is generated independently, so repeated values can appear in a list.

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