If you’re wondering how many numbers on a roulette wheel are there the answer depends on the roulette game itself. On the European version, there are 37 numbers, from 0 to 36. On the American version, the roulette wheel numbers go from 0, 00 up to 36. So this means there are 38 numbers in total, of which all are red and black, aside from the zeroes which are green. This is also why the house edge on the American version is higher. This means that the player has worse odds of winning on American roulette than he does on the European version.