Random number from 1 to 100
Tap to pick again · Esc to exit
Press the spacebar or Enter to pick again. Your range, options and the numbers drawn are saved in this browser.
About the 1 to 100 number picker
This page gives you a random number from 1 to 100 as soon as it opens. The number is big and easy to read. Press Pick again or the spacebar for another one.
Each number has the same 1 in 100 chance. You can also pick several numbers at once, sort them, or tick No repeats so that no number comes up twice. Everything happens in your browser.
Features
- One tap — a number from 1 to 100 is ready when the page opens
- One or many — pick up to 10,000 numbers at once, and Copy them all
- Sort ascending — a list of numbers in order, easy to read out
- No repeats — each number only once, until all 100 are drawn
- Big display and fullscreen — read it from across a hall
- Remembers — range, options and the numbers drawn stay in this browser
- Other ranges — change "From" and "To" for 0 to 99, 1 to 50 or anything else
Good uses for 1 to 100
- Raffle at a school fair — sell tickets numbered 1 to 100 for a cake, a book or a class basket. Tick No repeats and draw one number per prize. To print the tickets, use the Raffle Ticket Maker.
- Guess the number — the page picks a secret number, and the players guess. "Higher" or "lower" after each guess makes it a fun game for children, and a lesson in halving.
- Percent rolls in games — many games use a number from 1 to 100 as a "percent" roll: a 30% event happens when the number is 30 or lower.
- Pick a page or an exercise — from a workbook of 100 pages or a list of 100 tasks.
- Pick a starting number for a counting game or a class number line.
- Test data — a quick list of numbers for a spreadsheet or a lesson about averages.
The guessing game, done well
With "higher or lower" answers, you can always find a number from 1 to 100 in 7 guesses or fewer. Guess the middle (50), then the middle of what is left (25 or 75), and so on. Each guess cuts the numbers left in half: 100, 50, 25, 13, 7, 4, 2, 1. Seven halvings are enough, because 2 × 2 × 2 × 2 × 2 × 2 × 2 = 128, which is more than 100.
The chance of each number and of repeats
Each pick gives each number a 1 in 100 chance (1%). With 100 numbers, repeats still come sooner than people expect, because any two picks can match:
| Picks without No repeats | Chance of at least one repeat |
|---|---|
| 5 | 9.7% |
| 10 | 37.2% |
| 13 | over 50% |
| 20 | 87% |
| 30 | 99.2% |
A number you choose comes up at least once in 100 picks only 63.4% of the time, and seeing all 100 numbers takes about 519 picks on average. For a raffle or a fair order, tick No repeats.
Examples
- Three prizes, one raffle. Tickets 1 to 100 were sold. Tick No repeats and press Pick again three times: for example 58, then 12, then 91. No ticket can win twice.
- Five numbers in order. Set "How many" to 5, tick No repeats and Sort ascending. You might get 9, 27, 44, 63, 85.
- Only 60 tickets sold? Set "To" to 60. The page starts a new round for 1 to 60.
Frequently asked questions
Is it fair?
Yes. Every number from 1 to 100 has exactly the same chance. The page uses your browser's secure random numbers and skips the rare raw values that would favour small numbers.
Can a number come up twice?
Yes, when No repeats is off — each pick is new, like a fresh roll. Tick No repeats to draw each number only once, like from a hat. Press Start over to put them all back.
Can I pick from 0 to 99?
Yes. Type 0 in "From" and 99 in "To". The page draws a number in the new range at once.
How do I get a long list of numbers?
Set "How many" to the size you need, press Pick again, then press Copy. You get one number per line, ready to paste into a spreadsheet.
Is this for the lottery?
No. This is a simple number picker for games, school and everyday choices. It does not predict anything, and no number is luckier than another.
Related tools
- Random Number 1 to 10 — a number from 1 to 10
- Random Number 1 to 20 — a number from 1 to 20 for a class
- Random Number Generator — any range, any amount
- Raffle Ticket Maker — print numbered tickets
- Bingo Number Caller — call bingo numbers one by one
How to use it
- Open the page — a number from 1 to 100 is already there
- Press Pick again or the spacebar for a new number
- Set How many to pick several, and tick Sort ascending to put them in order
- Tick No repeats so no number comes up twice; Start over puts them all back
- Press Copy to paste the numbers somewhere else
