Roulette is universally recognized as one of the most iconic and popular games in casino history.

Understanding the subtle differences between the wheels is crucial for maximizing your chances of winning.

The Extra Green Zero

The American wheel, however, has 38 pockets: numbers 1 through 36, a single zero (0), and a double zero (00).

This single extra pocket on the American wheel drastically alters the mathematical probabilities of the game.

• The extra number changes all probability calculations
• The betting layout is slightly larger on the American table
• European tables often use a different chip system

Comparing the House Edge

Conversely, the American wheel's extra double zero pushes the house edge up to a massive 5.26%.

There is absolutely no mathematical justification for ever choosing to play American roulette if European is available.

Special European Roulette Rules

The "La Partage" rule dictates that if the ball lands on zero, you only lose half of your even-money bet.

This makes French roulette one of the most mathematically favorable table games on the entire casino floor.

Online casinos almost always offer both, so be vigilant and always click on the European wheel.