Roulette bet types explained clearly
Inside bets use small groups of numbers; outside bets cover wider sections of the table. Learn the difference before you place a chip.
The roulette layout is a map of possible outcomes. Where you place a chip tells you which pockets are covered and which payout applies. No position is a prediction machine, but each one has a clear mathematical definition.
Inside bets
Straight up is one number. A split sits between two adjacent numbers. A street covers a row of three. A corner covers four numbers meeting at one point. The European 0–1–2–3 line is the special four-number position at the edge of the layout.
Outside bets
Red and black, odd and even, and 1–18 and 19–36 each cover 18 numbers and pay 1 to 1. A dozen covers 1–12, 13–24 or 25–36. A column covers one vertical group of 12 numbers. Dozens and columns pay 2 to 1.
What happens when zero appears?
Zero is green. It is not red or black, odd or even, low or high, and it does not belong to a dozen or column. It can win a straight-up bet, a split with 1, 2 or 3, or the 0–1–2–3 line.
Use the quick cheat sheet while you play, then check the payout guide if you want the probability as well.