The bet that covers four numbers at once
You are standing at a roulette table, and the layout in front of you is a grid of numbers. A corner bet—sometimes called a square bet or a four-number bet—is a single chip placed at the intersection where four numbers meet on that grid. The chip sits on the crosshair, not on any individual number, and it covers all four numbers that touch that corner. If the ball lands on any of those four numbers, you win. If it lands anywhere else, the chip is lost.
The payout for a corner bet is fixed at 8 to 1. This means a winning corner bet returns your original stake plus eight times that stake. The payout is the same on a European single-zero wheel and an American double-zero wheel. What changes between the two wheels is not what you are paid, but how often you can expect to be paid.
The payout and the probability behind it
The 8-to-1 payout is a promise the table makes to every player who places a corner bet, regardless of which four numbers they choose. The corner covering 1, 2, 4 and 5 pays exactly the same as the corner covering 32, 33, 35 and 36. There is no corner on the layout that pays more or less than any other corner.
What differs is the probability of a win. A corner bet covers four pockets out of the total on the wheel. On a European wheel, which has 37 pockets including a single zero, four winning pockets out of 37 means the true odds against winning are 33 to 4, which simplifies to 8.25 to 1. The table pays 8 to 1. The gap between those two figures is the house edge on that bet.
On an American wheel, which has 38 pockets including a single and a double zero, the true odds against winning are 34 to 4, or 8.5 to 1. The table still pays 8 to 1. The extra pocket makes the gap wider, which is why the same corner bet carries a higher house edge on the American layout than on the European one.
Where the corner bet sits among inside bets
Roulette bets are divided into inside bets and outside bets. Inside bets are placed on the numbered grid itself; outside bets sit around the perimeter and cover broader categories such as red or black, odd or even, or the first dozen. The corner bet is an inside bet, and it sits in the middle of the inside-bet family in terms of how many numbers it covers and how much it pays.
| Bet | Numbers covered | Payout | What changes between wheel types |
|---|---|---|---|
| Straight up | 1 | 35 to 1 | Probability of winning |
| Split | 2 | 17 to 1 | Probability of winning |
| Street | 3 | 11 to 1 | Probability of winning |
| Corner | 4 | 8 to 1 | Probability of winning |
| Six line | 6 | 5 to 1 | Probability of winning |
The pattern is consistent: the more numbers a single chip covers, the lower the payout, because the bet wins more often. A straight-up bet on one number pays 35 to 1 because it wins rarely. A six-line bet covering six numbers pays 5 to 1 because it wins more often. The corner bet, covering four numbers, pays 8 to 1 and occupies the middle ground.
None of these payouts changes when you move from a European wheel to an American wheel. What changes is the probability of winning each bet, because the American wheel adds one extra losing pocket. The payout stays the same, the chance of collecting it shrinks, and the house edge on every inside bet grows as a result.
How a corner bet plays out round by round
A corner bet follows the same sequence as any other roulette wager. You buy in at the table, receive chips in the table's own colour, and place the chip on the corner intersection you want. The dealer spins the wheel and releases the ball in the opposite direction. Once the ball drops into a pocket, the dealer marks the winning number, clears all losing bets from the layout, and pays winning bets. A winning corner bet is paid at 8 to 1, and the original chip remains yours unless you instruct otherwise.
One procedural point matters more than most new players realise: a chip that is not exactly on the intersection may be read as a different bet. If the chip sits too far toward one number, the dealer may treat it as a straight-up bet on that number. If it sits on the line between two numbers, it may be read as a split. The dealer will usually clarify an ambiguous placement before the spin, but the cleanest way to avoid a misread is to place the chip squarely on the crosshair where the four corners of the four numbers meet.
The house edge on a corner bet
House edge and return to player are complements: they sum to 100% for the same bet under the same rule set. For a corner bet on a European wheel, the true odds are 8.25 to 1 and the table pays 8 to 1. That shortfall is the operator's mathematical advantage on the bet. For the same corner bet on an American wheel, the true odds are 8.5 to 1 and the table still pays 8 to 1, so the advantage is larger.
This difference is not unique to corner bets. Every bet on the American layout carries a higher house edge than its European counterpart because the double-zero pocket adds a losing outcome without adding a compensating payout. The corner bet illustrates the principle clearly because the payout is identical on both wheels while the probability of winning is not.
No betting pattern changes this. Placing corner bets on multiple intersections at once, increasing the stake after a loss, or covering the same four numbers repeatedly does not alter the built-in edge. Each corner bet is an independent wager with the same probability and the same payout every time it is placed. The only choices that change the expected rate of loss are which bet type you play and which wheel you play it on.
Mistakes that cost new players money
The first mistake is assuming a corner bet is a smart bet because it covers four numbers. It covers four numbers, but the payout is calibrated to that coverage. The house edge on a corner bet is the same as the house edge on most other inside bets on the same wheel. Covering more numbers does not reduce the edge; it changes the shape of the outcomes, making wins more frequent and smaller.
The second mistake is confusing the payout with the odds. A payout of 8 to 1 sounds generous, but the true odds against winning are slightly worse than that. The difference is where the house edge lives. A player who reads the payout as a measure of fairness is reading the wrong number.
The third mistake is placing the chip carelessly. A chip intended as a corner bet that lands on a number or a line becomes a different bet with a different payout. The dealer will usually correct an obvious misplacement, but the player who does not notice until after the spin has no recourse. Place the chip on the intersection, confirm the dealer's reading, and only then let the spin proceed.
Corner bets and the rest of the table
A corner bet can coexist with other bets on the same spin. You can place a corner on 1-2-4-5 and a straight-up bet on 17 at the same time. Each bet is settled independently, and a win on one does not affect the other. The total amount at risk is the sum of the chips placed, and the expected loss on the spin is the sum of the expected losses on the individual bets.
Some players combine corner bets to cover a block of numbers. Four corner bets can cover a 3-by-3 block of nine numbers, though the corners overlap and the coverage is not clean. This changes the distribution of outcomes but not the underlying edge. Each corner bet still carries the same house edge, and the combined wager carries the same edge as its parts.
The table layout is the authoritative source for what any bet pays. The payout is printed on the layout itself, and the dealer can confirm it before the spin. If you are playing an electronic roulette game, the paytable is available in the game's information panel. The figures in this article describe the standard corner bet; a specific table may offer a variant, and the posted layout is always the final word.
FAQ
Is a corner bet the same as a square bet?
Yes. Corner bet and square bet are two names for the same wager: a chip placed at the intersection of four numbers, covering all four, paying 8 to 1. Some tables and guides use one term, some use the other, and a few use four-number bet. The bet is identical under all three names.
Can I place a corner bet on the zero?
On a European layout, the zero sits at the end of the grid and can form a corner with the numbers 1, 2 and 3, covering four pockets. On an American layout, the zero and double zero sit at the head of the layout and can form a corner with the first row of numbers. The payout remains 8 to 1 wherever the corner sits.
Does a corner bet pay more on an American wheel?
No. The payout is 8 to 1 on both wheel types. The American wheel has one extra pocket, which makes a corner bet less likely to win, but the payout does not increase to compensate. This is why the house edge on the same corner bet is higher on the American layout than on the European one.
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