A wheel of numbers from 1 to 100
Spin and the wheel picks a number from 1 to 100. Every number has exactly a 1% chance. It’s the go-to range for percentages, guessing games and raffles, and it’s what most people mean by a random number generator.
How to use it
- Spin. Click the wheel or press Space. The range is already set.
- Watch the ticker. With a hundred slices the labels are small, so the number under the pointer is shown in large type below the wheel as it slows down.
- Read the result. The number pops up in a big card. Choose Done to keep it on the wheel, or Remove from wheel to draw without repeats.
Want a different range? Change From and To in the fields. Leave out skips numbers, like 13, 44 or a run such as 90-99.
Roll a percentage
A number from 1 to 100 is a percentage roll, the same as the percentile dice used in tabletop role-playing games, where two ten-sided dice make a number from 1 to 100.
- Chance of success: a 40% chance means you succeed on a roll of 40 or lower.
- Random events: give an event a percentage and spin each turn to see if it happens.
- Loot tables: many games list rewards by percentage bands, like 1–60 for common, 61–90 for rare and 91–100 for legendary.
| Range on the wheel | Chance of landing in it |
|---|---|
| 1–10 | 10% |
| 1–25 | 25% |
| 1–50 | 50% |
| 91–100 | 10% |
| Exactly 100 | 1% |
Tip: Running the same check again and again? Set the spin time to 2 seconds in Settings. Short spins are just as random as long ones.
Guessing games
Higher or lower. One person spins with the screen hidden. Everyone else guesses, and gets told “higher” or “lower” after each try. With smart guesses, anyone can find the number in seven tries or fewer.
Closest wins. Everyone writes down a guess before the spin. Closest to the result wins the round.
Guess the price. Hold up an item, spin a number, and players say whether the real price in dollars is higher or lower.
Raffles and classrooms
- Raffle draws: number your tickets from 1 to 100, spin, and remove each winning number before the next draw.
- 100th day of school: spin for a number and have students count, build or write that many things.
- Hundred chart practice: spin and have kids find the number on a hundred chart, then name the numbers above, below and on each side.
- Review questions: a bank of a hundred questions, numbered. Spin for the next one.
How random is it?
Each result comes from your browser’s cryptographic random number generator, the same kind used to make security keys. The number is chosen before the spin starts, and the animation is built to land on it, so nothing about how or when you click changes the odds. For even bigger draws, try 1 to 200 or 1 to 1000.