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Roulette Odds

In the US, a roulette wheel has 38 numbered slots: numbers 1 to 36, a zero, and a double zero. The betting layout consists of every individual number as well as a host of "outside" or combinations of numbers.

After the players make their bets the dealer spins the wheel and a ball and after several seconds the ball will land in one of the numbered slots.

The following table displays the available bets, the win (on a "for one" basis), and the probability of winning under US rules.

All casinos in the US follow these rules except those in Atlantic City. The house edge on all bets is 1/19, or 5.26%, except for one bet - the 0-00-1-2-3 combination, which carries a house edge of 7.89%.

BetPaysProbability WinHouse Edge
Black147.37%5.26%
Odd147.37%5.26%
Even147.37%5.26%
1 to 18147.37%5.26%
19 to 36147.37%5.26%
1 to 12231.58%5.26%
13 to 24231.58%5.26%
25 to 36231.58%5.26%
Six number combination515.79%5.26%
0,00,1,2,3 combination613.16%7.89%
Four number combination810.53%5.26%
Three number combination117.89%5.26%
Two number combination175.26%5.26%
Any one number352.63%5.26%

Single Zero Rules

Most high-end casinos in the United States have single-zero wheels. This includes Las Vegas, Atlantic City, the Grand in Tunica, and Foxwoods in Connecticut. The limits on the single zero wheels are usually higher than the double zero wheels. A noteworthy exception is the Nevada Palace in Las Vegas, which has a single zero wheel with a 25-cent minimum. The house edge on an American single-zero wheel is 1/37, or 2.70%.