Roulette is the undisputed symbol of the casino floor, an elegant game of chance that has captivated players for centuries.

However, many beginners do not realize that there are actually two major variations of the game being played globally.

One version offers a fair game of chance, while the other is heavily stacked in favor of the casino.

Let's explore the math behind the wheels so you can ensure you are always getting the best possible odds.

The Zeroes: What Separates the Two Games

The entire difference between European and American Roulette boils down to the green pockets on the wheel.

Because there is only one zero, the total number of possible outcomes on a European wheel is 37.

The American layout increases the total number of pockets to 38, changing the entire mathematical structure of the game.

This seemingly minor architectural change is the sole reason why one game is vastly superior to the other.

The zeroes are the casino's primary source of profit on even-money bets; the American wheel doubles the casino's advantage.

The Math: Comparing the House Edge

To truly understand why the American version is inferior, we must look at the mathematical House Edge.

In both games, a winning bet on a single number pays out at 35 to 1.

A 2.70% edge means you will lose an average of $2.70 for every $100 you wager; this is considered a fair casino game.

On an American wheel, the true odds of hitting your number jump to 37 to 1 (because of the 38 total pockets).

A 5.26% edge will drain your bankroll twice as fast as the European version, offering you zero additional benefits.

Taking it a Step Further: The French Rules

While European Roulette is excellent, a specific variant called French Roulette offers even better terms for the player.

These special rules—La Partage and En Prison—apply to even-money bets like Red/Black or Odd/Even.

This simple rule effectively cuts the house edge on even-money bets in half, down to an incredibly low 1.35%.

If your bet wins on the subsequent spin, you get your original stake back (without profit); if it loses, the casino takes it.

If French is unavailable, default to European; but never, ever click on the American Roulette table.

Quick Reference: Which Game is Best?

• Double Zero Roulette: High house edge, fast bankroll drain. Never play this if other options exist.


• Single Zero Roulette: Excellent odds for a table game. This should be your default choice.


• The French Table: Single zero with special rules that refund half your bet on a zero. The ultimate player advantage.


• Mini Roulette: Often found online, features only 13 numbers. Avoid it, as the house edge is usually worse.


• Betting Systems: Remember that the Martingale system fails equally on all three variations due to the zeroes.

Odds and Payouts Breakdown

There is absolutely no logical reason a player should ever choose to play American Roulette.

In physical casinos in the US, finding a European table often requires betting in the high-limit VIP rooms.

If you see a green 00 pocket, immediately close the game and find a European or French table instead.

Gamble smart, protect your funds, and never surrender an unnecessary advantage to the house.