Number Wheel

How to use it

1. Set the rangeType the From and To numbers, for example 1 and 75. The wheel fills with every whole number in that range, up to 200 numbers.
2. Choose repeats or notIn Options, switch on remove the winner (or everyone once before anyone twice) so a number that was called cannot come up again.
3. SpinClick the wheel, press SPIN, or hit Space. The result shows the number and its chance. Use Present mode to show it on a projector.

What the number wheel does

• Builds a random number wheel for any range up to 200 numbers: type From and To and the wheel of numbers fills itself.
• Works as a number randomizer without repeats: remove the winner, or everyone once before anyone twice, for bingo-style calling.
• Is a random number spinner for class games, and Present turns it into a big number wheel spinner on a projector.
• Shows the chance of each number in the result, like any number picker wheel should.
• Keeps the range in its link, so this random number wheel generator opens the same wheel for a co-caller.

Set a range and spin

The From and To fields define the wheel. Enter 1 and 10 and you get ten slices. Enter 1 and 100 and you get a hundred thin slices, which is a lot to read on a small screen. The wheel accepts up to 200 numbers, so 1 to 200 or 0 to 199 are the widest ranges. If you enter a wider one, the wheel stays empty, because it would be unreadable anyway. For anything bigger, see the section on large ranges below.

Every number in the range has the same chance on each spin. With 10 numbers that is 10% per spin, with 100 it is 1%, and with 200 it is 0.5%. The result displays the chance beside the number. The pick is made first with the browser's cryptographic random number generator, and then the wheel turns to stop inside that slice.

Small ranges are the most fun to watch. A wheel of 6 to 12 numbers works well for choosing a page, a question number, a turn order slot or a lucky seat. For two-digit ranges, use Present mode so the result can be read from the back of the room: it strips the page down to the wheel and the number. Press F to enter it and Escape to leave. Confetti and motion switch off when the device asks for reduced motion.

Pick a number 1-10, 1-100 or any range

Most requests for a random number are small and specific: pick a number between 1 and 10 for a guessing game, pick a number between 1 and 4 to choose one of four teams, pick a number between 1 and 100 for a page in a book. Each of them is just a From and a To on this wheel, and the table lists the common ranges with the exact chance each number gets on one spin.

Tiny ranges are quicker than they sound. Asked to pick a number 1 or 2, or to pick a number between 1 and 2 or between 1 and 3? The wheel shows two or three wide slices that everyone can read, which settles who starts without anyone choosing their favorite. Past 20 numbers the slices get thin, so switch on Present for the room.

No repeats for bingo-style calling

For calling numbers, repeats ruin the game, so the wheel offers two ways to avoid them. Remove the winner takes the called number off the wheel after each spin. Everyone once before anyone twice keeps the numbers in place but will not repeat one until every other number has had a turn. Either works for bingo-style calling; remove the winner has the advantage of showing visually what is left. For a full game with a B-I-N-G-O board and 90-ball tickets, the bingo caller keeps the board and the list of calls for you.

As numbers disappear, the chance of each remaining number rises, because the same spin is shared among fewer slices. That is exactly how drawing balls from a drum works. The table shows a 75-number game: what remains and the chance of any one number after each stage.

The Results tab keeps a time-stamped list of every number called, in order, and you can copy it. At the end of a round, that list is your record of what was called, which settles most arguments about whether a number came up, and players can check their card against it. It also helps if the caller loses their place. To call a second game, change From or To and the wheel refills with the new range; to replay the same range, nudge To by one and back.

Classroom number games

Numbers are a quick way to run a lesson without naming anyone. Let the wheel pick a page number for a reading aloud, a question from a worksheet, or a times-table target. A teacher who wants to practice multiplication can set 1 to 12, spin twice, and ask for the product.

A numbered seating or turn order is another classroom favorite. Give each student a number once, and each spin calls one up. With remove the winner on, everyone is called once before the cycle starts over, so no one is skipped and no one is picked twice in the same round. Students tend to accept a number being called more readily than a name, because it feels impersonal.

For estimation games, spin once to get a target, then ask the class to guess whether the next spin will be higher or lower. It is a gentle way to talk about chance: each spin is independent, and a number that just came up is no less likely to come up again, unless you have removed it. For spelling and category games, switch to the letter wheel.

Attaching names to numbers

The number wheel produces numbers, not names. If your class or group works with student numbers, keep a printed or on-screen list that pairs them, and read the name off after each spin. This works well when students are used to being called by number for a quiz or a line-up.

If you want the wheel itself to show a name next to each number, use the main wheel instead and write each entry as a pair, such as 7 Maya or 12 Jonas, one per line. The wheel then shows the whole line and the winner appears with both parts. You can do the same with the name picker when you do not need slices at all, and then you also get a no-repeat option for classes.

Be careful with numbering that depends on private data. Use seat numbers or roll numbers that you already show in class, and avoid anything that could identify a child outside it. Entries stay in the browser, but a shared link carries the whole wheel, so share links only with people who should see the names.

When to use the raffle picker instead

The wheel stops at 200 numbers for a practical reason: more slices than that cannot be read. For larger ranges, such as ticket numbers 1 to 5,000, use the raffle picker. It draws from a range of up to 99,999 ticket numbers, picks several winners in order, and can give a verifiable draw. It has no wheel to turn, so it suits a long strip of tickets better.

The raffle picker is also the right choice when the numbers represent people who bought tickets or entered an event, and you want a proof that others can check. If a draw involves paid entries, local lottery rules may apply, and the organizer is responsible for following them. The number wheel is for games, lessons and turns, not for prize drawings with money at stake.

A rule of thumb is that if you can see all the slices comfortably, use the wheel. If you only need a number from a huge range and you do not need to see the other options, the raffle picker does the job faster.

Fair picks and privacy

Numbers are picked with the browser's cryptographic random number generator, mapped onto the range with rejection sampling, so low and high numbers are equally likely. The wheel is only the animation. The result is decided before it turns, and the wheel is then rotated to a random point inside the winning slice.

The range you set and the numbers already called are remembered for your next visit, so a bingo night can pause and pick up again. Copy link shares the wheel with a co-caller; its data sits after the # sign, out of reach of servers, and anyone holding the link can see it.