What are the chances of hitting a single number in roulette?

The likelihood of landing on a specific number, or making a straight-up bet, in roulette varies depending on the version of the game you’re playing. In American roulette, with its 38 slots (1-36, plus 0 and 00), the odds drop slightly to 1 in 38, or about 2.63%.

In other words, if you place a wager on a specific number in European roulette, your chances are marginally better at 2.70% compared to 2.63% in American roulette. In both cases, the payout remains the same—35:1.