Random Number 1 to 37
Generate a random number from 1 to 37 — the exact number of pockets on a European roulette wheel (0-36). Map 1 → 0, 2 → 1, and so on to simulate spins with perfectly uniform probability, or use it whenever you need a fair pick from exactly 37 options.
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History
Common Uses
- ✓ European roulette number simulation (0-36)
- ✓ Fair 37-option selection
- ✓ Probability demonstrations
- ✓ Random table or seat assignment
- ✓ Game night number draws
Frequently Asked Questions
Why does European roulette have 37 pockets?
The European roulette wheel has pockets numbered 0-36: eighteen red, eighteen black, and a single green zero. That single zero gives the house its edge — every number otherwise has an equal 1/37 (2.70%) chance.
How do I map results to roulette pockets?
Subtract one: a result of 1 corresponds to pocket 0, a result of 2 to pocket 1, up to a result of 37 for pocket 36. Our generator guarantees each of the 37 outcomes is equally likely, just like a perfectly balanced wheel.
Can I type a custom count, like 6 numbers between 1 and 37 at once?
Yes — the "How many?" box accepts any count from 1 to 1,000 (type 6, 25, 500…), and the quick buttons fill common values. Turn on "No duplicates" when every number must be unique.
How many possible results are there in the 1 to 37 range?
Exactly 37 (counting both 1 and 37). Each has an identical 1-in-37 chance (2.70%) of appearing on every draw, independent of previous results.
Are my generated numbers stored or logged?
No. Numbers are generated locally in your browser with crypto.getRandomValues() and are never sent to, or stored on, any server. Click Clear or reload the page and they are gone.