Single Zero and Double Zero

The primary difference between the two types of roulette is that one has a single zero and the other has a single zero AND a double zero. The American Roulette version has both creating a roulette wheel with 38 numbers rather than only 37, like the European wheel. While it doesn’t sound like it should matter, it makes a drastic difference in terms of odds. In fact, the double zero ensures that the casino has a higher house edge and the gambler has fewer chances of winning when compared to European Roulette.