Rangdom

About roulette

Roulette is the classic casino wheel game. A ball settles into one numbered pocket, each colored red, black, or green. This generator spins a single pocket uniformly at random — every pocket is equally likely, with no house edge or physical bias.

The European wheel has 37 pockets (0–36) with a single green zero. The American wheel adds a second green pocket, 00, for 38 pockets in total. The current wheel has 37 pockets.

Colors and even-money bets

• Green — 0 and 00. These are neither odd nor even and neither low nor high, so even-money bets lose on a green pocket.
• Red — 1, 3, 5, 7, 9, 12, 14, 16, 18, 19, 21, 23, 25, 27, 30, 32, 34, 36.
• Black — every other number from 1 to 36.
• Odd / Even and Low / High (1–18 vs 19–36) apply to every numbered pocket.

How it works

1. Your browser generates a cryptographically secure 32-bit unsigned integer
2. The integer is mapped uniformly to one pocket of the selected wheel
3. The pocket's color, odd/even, and low/high properties are read from the standard roulette layout
4. The result is displayed instantly — no server request needed