Random Number Wheel

The Random Number Wheel picks a number in any range or spins a 0–36 roulette-style wheel. Set a minimum and maximum, or switch to Roulette, then spin for a result. Use it for raffles, classroom games and probability lessons. It is free, with no betting or real money.

Number Range

Mechanical split-flap counter. Pick any range from any min to any max.

Min

Max

History

No numbers yet

How does a random number generator work?

SpinGenerator's random number generator uses the browser's cryptographic random number generator through crypto.getRandomValues and maps the draw across your chosen range, such as 1–100 or 1–10,000. Every integer in the range has equal probability. Common uses include classroom random-student selection, raffle draws, statistical sampling and tabletop games.

Popular Uses

Math classroom activities
Raffle and giveaway number selection
Board game and tabletop randomization
Statistical sampling
Random order selection for lists

A roulette-style wheel for everyday number games

A numbered wheel adds a shared moment of suspense to an ordinary random draw. Here, roulette describes the familiar arrangement of red, black and green numbers, not a money game. Use the European layout for numbers 0–36, or the American layout when you want a separate 00 entry as well. The wheel chooses a number, then displays its color and number groupings so everyone can read the same result. There are no wagers, balances or prizes calculated by the tool.

Classroom activities and party prompts

In a classroom, assign a short question to each number and spin to choose the next prompt. Younger students can identify odd and even numbers, while older students can compare low and high groups or organize results by dozen. Treat 0 and 00 as special prompts rather than forcing them into the numbered groups. At a party, numbers can correspond to songs, conversation cards or small cooperative challenges. Agree on safe, optional activities beforehand, and let guests skip a prompt they do not enjoy.

Raffles and giveaways with a clear entry list

For a small raffle, label eligible entries before starting and make sure the wheel matches your list. A European wheel has 37 entries including zero; an American wheel has 38, with 00 as a separate label. If your giveaway has a different number of participants, use Number Range instead so every eligible entry is represented exactly once. Decide before the draw how unused numbers or repeat winners will be handled. Keep the entry rules visible and follow any requirements that apply to your event. This tool picks a number; it does not manage participants or guarantee compliance.

Make probability visible

Every European pocket has a 1-in-37 chance on a spin, and every American pocket has a 1-in-38 chance. Both layouts contain 18 red numbers and 18 black numbers. European has one green pocket, while American has two. A short history may show several reds or repeated numbers even though every draw is independent. Previous results do not make any pocket due to appear next. Ask students to predict the color totals over many trials, record a sample, then compare their observations with the expected proportions.

The last-20 history makes recent results easy to inspect. Its color counts and most-frequent labels describe only that small sample, not a forecast. Clear the history to begin a new activity, or switch layouts for a fresh comparison. Discuss why 00 is a distinct label, why zeros have no dozen or column, and why a run of one color does not change the next draw’s chances. The wheel is a free number picker for learning, games and everyday decisions.

Frequently Asked Questions

How do I generate a random number between 1 and 100?

Set the minimum to 1 and the maximum to 100, then tap generate. Any range works — 1 to 10, 1 to 6, or 1 to 10,000 — and every number in the range has the same chance.

Is this random number generator truly random?

It uses your browser's crypto.getRandomValues, the same cryptographic generator used by password managers, then maps it evenly across your range. There is no pattern to predict.

Can I use it to pick raffle or giveaway numbers?

Yes. Set the range to match your draw, generate once per number, and use the history list to keep track of what has already come up.

Can the same number come up twice?

Yes, each generation is independent, so repeats are normal and expected. Note results down if you need a set of unique numbers.

What is the difference between European and American roulette layouts?

European has 37 pockets: 0 and 1–36, each with a 1-in-37 chance. American has 38 pockets: 0, 00 and 1–36, each with a 1-in-38 chance. Both have 18 red and 18 black numbers; zeros are green.

Is the roulette wheel truly random?

Yes. Every spin uses the browser’s cryptographic random number generator through crypto.getRandomValues. Each pocket has an equal chance, and the animation lands on the selected number.