Roulette Odds: Probabilities for Every Bet Type

European roulette has 37 pockets (0-36) giving a house edge of 2.7%. American roulette has 38 pockets (0, 00, 1-36) with a 5.26% house edge. This seemingly small difference has a massive long-term impact—American roulette costs nearly twice as much per bet.

Straight up (1 number): European 2.7% chance, pays 35:1. Split (2 numbers): 5.4%, pays 17:1. Street (3 numbers): 8.1%, pays 11:1. Corner (4 numbers): 10.8%, pays 8:1. All inside bets have the same house edge despite different payouts.

Red/Black, Odd/Even, High/Low: 48.6% chance, pays 1:1. Dozens and Columns: 32.4% chance, pays 2:1. Despite different probabilities and payouts, all bets on a European roulette wheel have the same house edge of 2.7%.

The La Partage rule returns half your even-money bet when the ball lands on zero. This reduces the house edge on even-money bets to just 1.35%, making French roulette the best variant. The En Prison rule offers a similar benefit by imprisoning your bet for the next spin.