Random Number Generator

Generate random numbers within any range you choose. Pick a single number or a whole set, with or without repeats — ideal for raffles and giveaways, choosing a winner, games, lottery-style picks, and random sampling.

Formula reviewed for accuracy. Our methodology & sources

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Random Number Generator

utility calculator

Minimum

Maximum

How Many Numbers

No Repeats

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How It Works

The generator maps a random value onto your chosen range so every integer from the minimum to the maximum has an equal chance. When you ask for several numbers with "No Repeats" enabled, it draws from a shrinking pool so no value appears twice — exactly how a fair raffle draw works. Click Calculate again for a fresh set, and use the sum and range outputs to double-check your picks.

Formula

Random integer = Minimum + ⌊random × (Maximum − Minimum + 1)⌋

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Examples

Pick 3 unique winners from 50 entries

Draws three different numbers between 1 and 50.

Frequently Asked Questions

How do I pick a random winner for a giveaway?

Number your entrants from 1 to the total count, set the minimum to 1 and the maximum to that total, then generate one number — that entrant wins. For multiple winners, increase the count and enable "No Repeats".

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What does "No Repeats" do?

It guarantees every generated number is unique, drawing without replacement. This is what you want for raffles or assigning unique slots. It only works when you request no more numbers than the range contains.

Are these numbers truly random?

They use the system pseudo-random generator, which is more than sufficient for games, raffles, sampling, and everyday use. It is not intended for cryptographic key generation.