Roulette Payout Calculator

Roulette Payouts and Odds

Roulette payouts depend on how many numbers your bet covers. A bet covering $S$ spaces on a 36-number layout pays:

$$\text{payout ratio} = \frac{36}{S} - 1$$

Win probability is $S$ divided by the number of pockets (37 on European wheels, 38 on American wheels). Related tools: Probability Calculator and Expected Value Calculator.

Expected Return

Expected return per dollar is $\text{win probability} \times \text{payout} - \text{lose probability}$. On a fair wheel this is negative because of the zero pockets. American roulette has an extra 00, so house edge is higher than on European tables.

Common Bet Types

Outside bets such as red, black, even, odd, and high/low cover 18 numbers and pay 1:1. Dozens and columns cover 12 numbers and pay 2:1. Inside bets cover fewer numbers with larger payouts, such as 35:1 on a straight single-number bet.