Where the payout numbers come from
Every roulette payout is built on a simple idea: the casino pays you as if the zero pockets did not exist. A straight-up bet on one number pays 35 to 1, even though a European wheel has 37 pockets and an American wheel has 38. That gap between the payout and the true odds is where the house edge lives, and it is the single most important thing to understand before you put a chip down.
The calculation itself is straightforward. The payout for a bet is set so that if the wheel had exactly 36 pockets and no zeros, the bet would be perfectly fair. Cover one number out of 36 and a fair payout would be 35 to 1: you get your stake back plus 35 units in winnings. Cover two numbers and a fair payout would be 17 to 1. Cover 18 numbers and it would be 1 to 1. The zeros are then added to the wheel without changing any of those payouts, which tilts every bet slightly toward the house.
This means you never need to memorise a payout formula that changes from bet to bet. The payout is fixed by how many pockets your bet covers. The house edge is fixed by how many extra pockets the wheel carries.
Reading a payout table
Roulette bets are usually divided into inside bets, which sit on the numbered grid, and outside bets, which sit around its edges. Inside bets cover fewer numbers and pay more. Outside bets cover many numbers and pay less. The table below shows the standard payouts for a European wheel, which has 37 pockets including a single zero.
| Bet | Numbers covered | Payout | True odds on 37-pocket wheel |
|---|---|---|---|
| Straight up | 1 | 35 to 1 | 36 to 1 |
| Split | 2 | 17 to 1 | 17.5 to 1 |
| Street | 3 | 11 to 1 | 11.33 to 1 |
| Corner | 4 | 8 to 1 | 8.25 to 1 |
| Six line | 6 | 5 to 1 | 5.17 to 1 |
| Dozen / column | 12 | 2 to 1 | 2.08 to 1 |
| Red / black, odd / even, high / low | 18 | 1 to 1 | 1.06 to 1 |
On an American wheel the payouts are identical, but every bet covers a slightly smaller share of the wheel because there are 38 pockets instead of 37. The double zero adds one more losing pocket to every wager, which raises the house edge across the whole layout.
How the wheel type changes what you lose
Roulette is unusual among table games in that the same bet can carry a materially different house edge depending on which wheel you are sitting at. The payout for a straight-up bet is 35 to 1 on both wheels, but the chance of hitting it is not the same.
On a European wheel with 37 pockets, a one-number bet has a 1 in 37 chance of winning. The house edge is the difference between the true odds and the payout odds, which works out to a single pocket's worth of disadvantage on every spin. On an American wheel with 38 pockets, that same bet has a 1 in 38 chance, and the extra pocket roughly doubles the house edge on most bets.
This is not a small detail. If you are choosing between two tables, the wheel type is the single largest rule difference on offer. Some European tables also apply a rule that returns half of an even-money bet when the ball lands in zero, which lowers the edge on those outside bets specifically. Check the felt or the table placard before you buy in, because the rule set is always printed somewhere at the table.
The sequence of a round
A roulette round moves faster than most new players expect. The dealer closes betting, spins the wheel, launches the ball in the opposite direction, and announces when betting is closed. From that moment your chips are committed. The ball drops into a pocket, the dealer places a marker on the winning number, and losing bets are cleared first. Winning bets are then paid, and only after that may you touch your chips or place new ones.
Buying in works differently from other table games. Roulette uses non-value chips, meaning your chips have no denomination printed on them. You buy a colour that is yours alone at that table, and the dealer assigns it a value based on how much you hand over. Because the chips are worthless at any other table, you must cash them in at the roulette table before you leave. Forgetting this is one of the most common procedural mistakes new players make.
Another common error is reaching for chips after the dealer has called no more bets. Once the call is made, any chip that lands on the layout is void or, at best, returned with a warning. A third is stacking chips in a way that makes your intended bet unclear. On a busy table the dealer pays what the chip position shows, not what you meant, so place each bet cleanly on its own spot.
What the payout does and does not tell you
A high payout is not a better bet. It is compensation for a lower probability. The straight-up bet pays 35 to 1 because it rarely wins; the red bet pays 1 to 1 because it wins almost half the time. Over a very large number of spins, every bet on the same wheel loses at the same underlying rate, because the house edge is applied to the amount wagered, not to the payout ratio.
What changes between bets is the shape of the session. A player making straight-up bets will experience long stretches of losses interrupted by occasional large pays. A player making even-money bets will win and lose in a much tighter rhythm. Neither pattern changes the long-run expectation, but they feel very different while you are sitting at the table, and that is worth knowing before you choose a style.
Progression systems that raise or lower your stake after wins or losses do not change the payout calculation either. They rearrange when you win and lose, but each individual spin still carries the same edge. The payout table stays exactly as printed no matter what pattern you bet in.
FAQ
Why does a straight-up bet pay 35 to 1 instead of 36 to 1?
The payout is set as if the wheel had 36 pockets and no zero. A fair payout for covering one number out of 36 would be 35 to 1. The zero is then added to the wheel without increasing the payout, which creates the house edge on that bet.
Do American and European wheels pay different amounts?
No. The payouts are identical on both wheels for the same bet type. The difference is in the probability of winning, because the American wheel has one extra pocket. The same payout on a lower probability means a higher house edge.
Can I calculate the payout for any bet myself?
Yes. Count how many numbers the bet covers, then use the formula that a fair payout for covering N numbers out of 36 is (36 divided by N) minus 1, expressed as a ratio to 1. The casino's printed payout is always at or slightly below that fair figure, and the gap is the house edge.
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