Number Wheel
Pick a range, spin, and get a random number. Raffle tickets, dice, turns: every number has the same chance.
The wheel has spoken!
Press the wheel, the space bar or Enter to spin.
Results
| Name | Draws |
|---|
How to use the number wheel
- Set the first and last number of the range.
- Press the wheel, the space bar or Enter.
- For a draw without repeats, open Options and tick "Remove the winner after each spin".
Odds by range
| Range | Each number | A repeat in 3 spins | A repeat in 5 spins |
|---|---|---|---|
| 1 to 6 | 16.7% | 44.4% | 90.7% |
| 1 to 10 | 10% | 28% | 69.8% |
| 1 to 20 | 5% | 14.5% | 41.9% |
| 1 to 50 | 2% | 5.9% | 18.6% |
| 1 to 100 | 1% | 3% | 9.7% |
A repeat in k spins is 1 − n × (n − 1) × … × (n − k + 1) / nk, the same maths as the birthday problem.
Names instead of numbers? Use the spin the wheel page.
Frequently asked questions
Is every number equally likely?
Yes. Each number in the range is one slice, drawn with your browser's cryptographic generator and the NIST discard method. From 1 to 10, each number has exactly 10% per spin.
Why did the same number come up twice?
Repeats are common: spinning 5 times from 1 to 20, at least one number repeats 41.9% of the time. To avoid them, open Options and tick "Remove the winner after each spin". Changing the range puts every number back.
What range can I use?
Any whole numbers, negative included, up to 500 numbers on the wheel. Swap From and To and the wheel still works. Past about 60 numbers the labels get small on a phone.
Can I use it as a dice?
Set 1 to 6: each face has 16.7%, like a fair die. For two dice, spin twice and add.