Random number between 1 and 1000

A random number from 1 to 1,000

With a thousand possible values, this range is mostly for big draws. Click “Pick a number” or press the space bar: your browser's cryptographic random generator picks a whole number, and all thousand have the same chance. Nothing is sent to a server.

What a large range is good for

• Tickets and race bibs: a charity raffle, a local fun run, a prize draw at a trade show. If the numbers stop at 742, enter 742 as the “Maximum”.
• Several winners: for 10 prizes, set “How many numbers” to 10, tick “No duplicates”, then “Sort ascending” so the tickets are quicker to find in the box.
• A code for a game or an escape room: a three-digit padlock runs from 000 to 999. Set 0 and 999, and read a result like 7 as 007.
• Test IDs: up to 1,000 numbers per draw, pasted one per line into a spreadsheet with “Copy”.

Your odds between 1 and 1,000

One specific number has a 1 in 1,000 chance, or 0.1%. With 3 winners drawn without duplicates, each ticket has a 3 in 1,000 chance of winning: 0.3%.

Why tick “No duplicates”? Because repeats turn up far sooner than most people expect. Draw numbers without that box and the chance of getting at least one number twice passes 50% at 38 numbers (50.9%). It's the birthday paradox, with 1,000 values instead of 365.

In “guess the number”, if you always guess the middle of what's left, 10 guesses are always enough: 2 to the power of 10 is 1,024, which covers 1,000 numbers. With 9 guesses (2 to the power of 9 is 512), there's no guarantee.

FAQ

Can I draw all 1,000 numbers at once?

Yes. Ask for 1,000 numbers with “No duplicates” and you get a full shuffle from 1 to 1,000. That's also the limit per draw.

Do low numbers come up less often?

No. 1, 500 and 1,000 each have a 0.1% chance. The generator has no preference for round numbers or for the middle of the range.