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

European and American roulette may look nearly identical to the untrained eye, but the math differs wildly.
The Impact of the Double Zero
A European roulette wheel features 37 pockets in total: the numbers 1 through 36, plus a single zero (0).

The addition of the 00 pocket effectively doubles the casino's built-in mathematical advantage over the player.
The extra number changes all probability calculationsThe betting layout is slightly larger on the American tableEuropean tables often use a different chip system Comparing the House Edge
With a house edge of 2.70%, European roulette is relatively fair compared to many other casino games.

Statistically, for every $100 you wager, you expect to lose $2.70 on European and $5.26 on American.
The En Prison and La Partage Rules
The "En Prison" rule "imprisons" your bet for the next spin if the zero hits, giving you a second chance.

This makes French roulette one of the most mathematically favorable table games on the entire casino floor.
VersionZero PocketsHouse EdgeEuropeanOne (0)2.70%AmericanTwo (0, 00)5.26%
The conclusion is incredibly simple: you should always seek out and exclusively play European or French roulette.