European roulette wheels have 37 pockets (0-36), while American wheels have 38 (0, 00, and 1-36). This difference has a significant impact on the house edge, and subsequently, the odds. The house edge, a percentage that represents the casino's advantage, is higher in American roulette due to the added "00" pocket. Therefore, the odds of winning are slightly lower.
Roulette bets are categorised as inside and outside bets. Inside bets involve wagering on specific numbers or small groups of numbers. These bets offer higher payouts but come with lower odds of winning. Outside bets, on the other hand, cover larger groups of numbers, such as red or black, odd or even, or high or low. These bets have better odds of winning but offer lower payouts.
Calculating the odds starts with understanding the number of pockets. In European roulette, the odds of hitting a specific number are 1 in 37. For an outside bet on red or black, the odds are approximately 1 in 2 (factoring in the zero, which isn't red or black). These odds are then reflected in the payouts. For example, a straight-up bet on a single number in European roulette pays 35 to 1.
The house edge is the difference between the true odds and the payout odds. The casino uses this to ensure they have a long-term profit. While winning at roulette is possible in the short term, due to the house edge, the casino has a statistical advantage over time.
To make the most of your gameplay, consider the following: