The payout is a ratio, not a rounding-up
A roulette payout is the amount the dealer returns to you on top of your original wager when your bet wins. It is expressed as a ratio of winnings to stake. A straight-up bet on a single number pays 35 to 1, which means a winning one-unit wager returns 35 units in winnings plus your original unit, for 36 units back in total. The payout ratio is fixed by the bet type, not by the size of your stake, and it is printed on the table layout so that every player at the wheel can read the same terms before the ball is released.
What confuses new players is that the payout ratio is not the same as the true odds of the event. On a European wheel there are 37 pockets, so a single number has a 1-in-37 chance of appearing. A fair payout for that probability would be 36 to 1, but the table pays 35 to 1. The missing unit is the house edge. The payout is the promise the table makes; the edge is the gap between that promise and the mathematical likelihood of the event.
What the wheel and layout determine
Two physical facts drive every roulette payout. The first is the number of pockets on the wheel. A European wheel has 37 pockets, numbered 0 through 36, with a single zero. An American wheel has 38 pockets, adding a double zero. The second fact is the printed layout, which groups those numbers into betting areas: individual numbers, splits, streets, corners, dozens, columns, red or black, odd or even, high or low. Each area carries its own payout ratio, and the ratio is lower than the true odds of that group appearing.
The extra zero pocket on an American wheel does not change any payout ratio. A straight-up bet still pays 35 to 1 on both wheel types. What the double zero changes is the probability that any given bet wins, because there is one more losing pocket. The same payout against a lower chance of winning means a larger house edge on the American layout. This is the single most important structural difference between the two common wheel types, and it matters more than any betting pattern a player might adopt.
How a round moves from stake to settlement
A roulette round has a fixed sequence. The dealer opens betting, players place chips on the layout, and the dealer spins the wheel and releases the ball in the opposite direction. Once the ball drops into a pocket, the dealer places a marker on the winning number, clears all losing bets first, and then pays winning bets in full. You do not touch your chips between the moment the dealer calls no more bets and the moment the dealer finishes paying winners, because the layout must remain readable while the house settles every position.
Your buy-in is converted into wheel chips at the table. These chips have no denomination printed on them and are only valid at that table, which is why you must exchange them for regular casino chips before you leave. The dealer assigns you a chip colour so that your bets can be distinguished from every other player's on the same layout. If you are playing a straight-up number, the dealer places your chip directly on that number. For outside bets such as red or black, you place the chips in the marked box yourself.
Settlement follows a strict order. Losing bets are removed first, because the house must clear the layout before it pays winners. Then winning inside bets are paid, then outside bets. The dealer pays the highest-ratio bets first as a matter of procedure, but the payout amount does not depend on the order in which bets are settled. Each winning position is paid individually, and the dealer will often announce the total returned to a player with several winning positions.
Inside bets and what they return
Inside bets are wagers placed on the numbered part of the layout. They carry higher payout ratios because they cover fewer numbers. The straight-up bet on one number pays 35 to 1. A split, placed on the line between two numbers, pays 17 to 1. A street, covering a row of three numbers, pays 11 to 1. A corner, covering four numbers that meet at a point, pays 8 to 1. A six-line, covering two adjacent rows, pays 5 to 1.
Each of these ratios is fixed, and each is slightly below the true odds of the group it covers. A split covers two numbers out of 37 on a European wheel, so the true odds are 17.5 to 1, but the table pays 17 to 1. The pattern repeats across every inside bet. The house edge is not a hidden fee added at settlement; it is built into the difference between the payout ratio and the probability of winning.
| Bet type | Numbers covered | Payout ratio | True odds (European wheel, 37 pockets) |
|---|---|---|---|
| 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 |
The table compares payout ratios against true odds for the same bet on a European wheel. The gap in each row is the source of the house edge. On an American wheel the true odds are worse for every row, while the payout ratios stay identical.
Outside bets and why they feel safer
Outside bets sit around the numbered grid and cover larger groups of numbers. Red or black, odd or even, and high or low each cover 18 numbers and pay 1 to 1. Dozens and columns each cover 12 numbers and pay 2 to 1. These bets win more often than inside bets, which is why they feel safer, but the payout ratio falls in step with the higher win probability. A 1-to-1 payout on an 18-number bet still leaves the zero pockets uncovered, and that is where the house edge lives.
The zero is the critical detail. On a European wheel, red or black covers 18 of the 37 pockets. The zero is neither red nor black, neither odd nor even, and neither high nor low, so every one of those outside bets loses when the zero appears. The payout is 1 to 1, but the true odds are 19 to 18 against. The same logic applies to dozens and columns, which cover 12 of 37 pockets and pay 2 to 1 against true odds of 25 to 12 against.
What changes the edge, and what does not
The only structural choice that changes the house edge on a roulette bet is the wheel type. A European wheel with 37 pockets produces a lower edge than an American wheel with 38, because the double zero adds a losing pocket without improving any payout. Beyond that, the edge is set by the bet type. The payout ratio and the number of covered pockets together determine the edge for that bet, and no betting pattern alters that arithmetic.
Volatility is a separate property and does not change the edge. A straight-up bet pays 35 to 1 and wins rarely, which makes it high volatility. An outside bet pays 1 to 1 and wins often, which makes it low volatility. Over a very large number of spins, both bet types lose at the rate set by their own edge. The straight-up bet does not become a better or worse bet because it pays more; it simply distributes the same expected loss across fewer, larger swings.
Progression systems such as doubling after a loss do not change the payout structure. They change the size of the stake, not the ratio the table pays, and they redistribute outcomes rather than removing the edge. A losing streak on a progression increases the amount at risk faster than the payout ratio can recover it, and table maximums cap how far the progression can run.
Where the payout is stated before you bet
Every roulette table prints its payout ratios on the layout itself, usually in the form of a small chart at the side of the betting area. The chart lists each bet type and its payout, and it is the authoritative source for that table. If the table uses a rule variant such as la partage or en prison, which alters what happens to even-money bets when the zero appears, that rule is also printed or posted at the table, because it changes the effective edge on those specific bets.
The wheel type is visible before you sit down. A European wheel has one green zero pocket; an American wheel has two. The table layout also shows the zero positions. If you want to know the exact edge for a specific bet on a specific table, you can calculate it from the payout ratio and the number of pockets, and the table's posted rules will tell you whether any special zero rule applies.
FAQ
Does a roulette payout include my original stake?
No. The payout ratio describes winnings only. A winning 35-to-1 bet returns 35 units in winnings plus your original unit, for 36 units back. The dealer pays the winnings and leaves your original bet in place, then returns both to you or lets the bet ride if you request it.
Why does an American wheel pay the same as a European wheel when it has more pockets?
Because the payout ratios are fixed by bet type, not by wheel type. The extra double zero pocket reduces the probability of winning without improving the payout, which means the house edge is higher on the American layout for the same bet. The payout chart looks identical; the odds behind it are worse.
Can I calculate the house edge from the payout ratio myself?
Yes. Compare the payout ratio to the true odds of the bet covering its numbers on the wheel in use. The difference between the two, expressed as a percentage of each wager, is the house edge. The wheel's pocket count and the bet's covered numbers give you the true odds; the printed payout gives you the return.
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