Random Wheel

Understand the draw

Equal entries are not always equal labels

Each entry has one equal chance of being selected. With the four sample choices—Pizza, Tacos, Pasta, and Salad—each has a 1 in 4 chance, or 25%, on every spin. The size of a label and the time you press Spin do not change its odds.

Add a second Pizza entry and there are now five entries. Each entry has a 20% chance, but Pizza appears on two of them, so the chance of a Pizza result is 2 ÷ 5 = 40%. Tacos, Pasta, and Salad each have 20%. Duplicate labels are useful for deliberate weighting; accidental duplicates make a supposedly equal draw unequal.

The browser selects an entry using its cryptographic random-number source. The selection method discards the small leftover portion of the number range that would otherwise favor some entries. The wheel animation then reveals that selection; watching where the wheel starts does not predict the winner.

Choose whether winners can repeat

Spinning again with the same list allows the same result to return. A previous winner is not less likely on the next spin, and four spins do not promise one of each result. Equal probability is a rule for each draw, not a promise that a short sequence will look evenly balanced.

For a presentation order, add one entry per participant and useRemove winner & spin again after recording each result. With four unique names, the first draw gives each a 25% chance. After one is removed, each remaining name has a 1 in 3 chance on the next draw.

Removal affects only the selected entry. If two entries say Alex, removing one does not remove both. Use distinguishable labels such as Alex A and Alex B when they represent different people. Check the remaining list before continuing.

Set up a draw people can follow

1. Agree on the choices and whether repeats are allowed before the first spin.
2. Remove the sample foods and check the list for missing or duplicate entries.
3. Keep the list visible, spin once, and record the result before editing anything.
4. For several draws, check Draw history. It keeps the latest 50 winners with their original labels, dates, and choice counts, even after entries are edited or removed. Use Clear draw history to remove those records.

The wheel supports up to 100 entries, with labels of up to 80 characters. It keeps the current list and draw history in this browser, but it does not create a certified draw record or a shared session. Use it for everyday choices and informal turn-taking where everyone can see and agree on the setup.