The payout is fixed, but the wheel you sit at changes the odds
You put a chip on a single number, the ball lands on that number, and the dealer slides you a stack of chips. The payout for that moment is always the same multiple of your stake: 35 to 1. That means a winning straight-up bet returns your original chip plus 35 more of the same value. The part that changes is not the payout. It is the wheel you are playing on, because the wheel determines how many losing pockets sit alongside your number.
A European wheel carries 37 pockets: the numbers 0 through 36. An American wheel carries 38, because it adds a double zero alongside the single zero. Your single number is still one pocket either way. The payout is still 35 to 1 either way. But the chance of the ball finding your pocket is not the same, and that gap between the payout and the true odds is where the house edge lives.
What a straight-up bet is
A straight-up bet is a wager placed entirely inside one number's square on the layout. The chip sits inside the box, not touching any line. If the ball lands on that number, the bet wins. If it lands anywhere else, the bet is collected. There is no partial win, no push, and no second chance.
The payout of 35 to 1 is printed on the table layout or in the game's information panel. It does not change between online and live tables, and it does not change with the size of your stake. A one-unit bet returns 36 units in total when it wins: the 35-unit payout plus the original unit. A ten-unit bet returns 360 units in total. The ratio stays fixed.
Why the payout is not the same as the true odds
On a European wheel, a single number has one winning pocket out of 37. The true odds against hitting it are 36 to 1. The table pays 35 to 1. The difference between those two numbers is the operator's mathematical advantage on that bet. On an American wheel, the same bet has one winning pocket out of 38, so the true odds are 37 to 1 while the payout remains 35 to 1. The American layout widens the gap, which is why the straight-up bet carries a larger house edge on that wheel.
This relationship holds for every bet on the table, not just the single number. The payout is always slightly short of the true odds, and the size of the shortfall depends on the bet and the wheel. The straight-up bet is a useful example because the numbers are clean and easy to compare.
| Wheel type | Pockets | Winning pockets for one number | True odds against | Payout | Effect on house edge |
|---|---|---|---|---|---|
| European | 37 | 1 | 36 to 1 | 35 to 1 | Smaller gap between odds and payout |
| American | 38 | 1 | 37 to 1 | 35 to 1 | Larger gap, higher house edge on the same bet |
How a round runs from buy-in to settlement
You sit down, place cash or a casino ticket on the felt, and the dealer converts it into roulette chips. At many live tables, roulette chips are coloured differently for each player so the dealer can tell whose bet is whose. You do not pocket them. They have value only at that table, and you exchange them back for regular chips or cash when you leave.
When the dealer opens betting, you place your chip fully inside the square of the number you want. You can bet on more than one number, and you can combine a straight-up bet with outside bets, but each wager settles on its own terms. The dealer spins the wheel, sends the ball in the opposite direction, and calls no more bets before the ball drops. When the ball settles, the dealer marks the winning number, collects the losing bets, and pays the winners. A winning straight-up bet is paid at 35 to 1, and your original chip stays on the layout until you pick it up or the dealer pushes it back to you.
What the other inside bets pay
The single number is the highest-paying bet on the roulette layout, but it is not the only inside bet. Each inside bet covers a different set of numbers and pays a different multiple. The pattern is consistent: the more numbers a bet covers, the smaller the payout, because the chance of winning is higher.
| Bet | Numbers covered | Payout | How it is placed |
|---|---|---|---|
| Straight-up | 1 | 35 to 1 | Chip fully inside one number's box |
| Split | 2 | 17 to 1 | Chip on the line between two numbers |
| Street | 3 | 11 to 1 | Chip on the outer edge of a row of three |
| Corner | 4 | 8 to 1 | Chip on the intersection of four numbers |
| Six line | 6 | 5 to 1 | Chip on the outer edge where two rows meet |
These payouts are the same on European and American wheels. What changes between the two layouts is the house edge on each bet, because the American wheel adds an extra losing pocket to every wager.
Where the payout is displayed and what to check before you bet
Every roulette table, whether physical or digital, carries the payout schedule somewhere visible. On a live table, the payouts are printed on the layout itself or on a placard at the table. In an online game, the information panel or help screen lists the payouts and the wheel type. Before you place a straight-up bet, confirm two things: which wheel you are playing, and that the straight-up payout is 35 to 1. The wheel type is the single biggest determinant of the edge you face on that bet.
If you are playing online and the game does not state its wheel type clearly, look at the zero pockets on the displayed wheel. One zero means a European layout with 37 pockets. Two zeros means an American layout with 38. Some games use other regional layouts, but the payout schedule and the number of pockets are always stated in the game's rules.
The mistakes that cost new players most on a single-number bet
The first mistake is reading the payout as the chance of winning. A 35 to 1 payout does not mean you win once every 35 spins. On a European wheel, the true frequency is one in 37. On an American wheel, one in 38. The gap is small on any given spin, but it is the entire source of the house edge, and it compounds over a session.
The second mistake is assuming the straight-up bet is a worse or better bet than the outside bets without checking the edge. The straight-up bet has a high payout because it is unlikely to win. The outside bets have low payouts because they win often. The house edge differs between bet types on the same wheel, but the straight-up bet is not automatically the worst choice on the layout. What it is, mechanically, is the most volatile: long runs of losses, interrupted by a large multiple when the number does land.
The third mistake is chasing a number that has not appeared for a while. The wheel has no memory. A number that has not hit in 100 spins is no more likely to hit on the next spin than any other number. The physical wheel may have tiny imperfections, but in a properly maintained game the outcome of each spin is independent of the previous ones. No betting pattern, including increasing your stake on a number that feels due, changes the payout or the edge.
FAQ
Do all casinos pay the same for a single number on roulette?
The straight-up payout of 35 to 1 is standard across the roulette layouts in common use. What varies is the wheel type, which changes the true odds and therefore the house edge. Check the number of zero pockets before you bet.
Can I bet on a single number and an outside bet at the same time?
Yes. Each wager settles independently. A straight-up bet on one number and a separate bet on red, for example, are two different bets with different payouts and different probabilities. Winning one does not affect the other.
Is there a roulette version where a single number pays more than 35 to 1?
Some promotional or variant games advertise different payouts, but the standard straight-up payout on the common European and American layouts is 35 to 1. If a game offers a different multiple, read its specific payout schedule and rules, because the wheel structure or the bet conditions will differ from the standard layouts.
Play responsibly. If you or someone you know has a gambling problem, call the helpline printed in the footer below.
Play responsibly
Gambling should be treated as paid entertainment, never as a way to earn income or recover losses. 1-800-MY-RESET (1-800-697-3738)
18+ or 21+ depending on where you are; follow the minimum age that applies to you.
This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.