Roulette trainer
Every bet
On the wheel you picked above. The house edge is what a bet costs you on average, per dollar bet.
Exact odds. Every figure is counted from the pockets on the wheel: a bet's chance is the pockets it covers out of the pockets on the wheel. They match the owner's exact figures for each wheel. Your casino's rules may differ. How our odds are calculated
Pick the wheel, not the number
Every bet on a roulette table costs the same, with one exception. The decision that matters is which wheel you sit down at.
Single, double or triple zero
The zeros are how the casino wins: every bet pays as if they weren't there. More zeros, bigger edge.
| Wheel | Pockets | House edge | Average cost of $100 in bets |
|---|---|---|---|
| Single zero, la partage (even-money bets) | 37 | 1.35% | $1.35 |
| Single zero (European) | 37 | 2.70% | $2.70 |
| Double zero (most US casinos) | 38 | 5.26% | $5.26 |
| Double zero, top line 0-00-1-2-3 | 38 | 7.89% | $7.89 |
| Triple zero (some Las Vegas tables) | 39 | 7.69% | $7.69 |
Find a single-zero wheel. It halves the cost of every bet. In the US they are mostly in high-limit rooms, often with higher minimums, so compare the minimum against what you save.
La partage (and its cousin, en prison) gives back half of an even-money bet when the ball lands on zero. It applies only to red/black, odd/even and 1-18/19-36, and only on single-zero wheels.
Read the wheel, not the sign. A triple-zero table looks like any other from across the room. Count the green pockets.
The bets
Inside bets go on the numbers; outside bets go in the boxes around them. A bet that covers more numbers pays less, and the house edge stays the same.
- Straight up, 35 to 1One number. Tap a number in Straight mode.
- Split, 17 to 1Two numbers side by side: the chip sits on the line between them.
- Street, 11 to 1A row of three: the chip sits on the outside edge of the row.
- Corner, 8 to 1Four numbers in a square: the chip sits where they meet.
- Six line, 5 to 1Two rows of three: the chip sits on the edge between them.
- Dozens and columns, 2 to 1Twelve numbers.
- Red, black, odd, even, 1-18, 19-36: 1 to 1Eighteen numbers. The zeros lose them all.
The one bet to skip. On a double-zero wheel, the top line (0, 00, 1, 2 and 3) pays 6 to 1 when fair odds would need 6.6, so it costs 7.89% instead of 5.26%.
Payout drill
Dealers pay fast, and mistakes happen. Know what you're owed before the chips slide over.
Myths that cost money
- "Red is due"The wheel has no memory. After ten blacks, red is exactly as likely as before. Casinos post a history board anyway; the trainer shows one too, so you can watch it mean nothing.
- Covering the tableBets on more numbers win more often but pay less. The edge on every dollar stays the same.
- Betting systemsDoubling after a loss changes when you win and lose, not how much the bets cost. A long losing streak hits the table limit or your bankroll first.
- Hot and cold numbersA fair wheel's results are independent spin to spin. Watch the "Expected" number in your session: it is what your bets really cost.
At the table
- Wheel chipsMany tables give each player their own color of chips, worth whatever you buy in for. Cash them back at the table before you leave.
- Table minimumsMost tables have separate minimums for inside bets (added together) and for each outside bet.
- "No more bets"When the dealer waves a hand over the layout, betting is closed for that spin.
- The dollyThe marker on the winning number. Wait until it's lifted before you place new bets.
- Check your payoutUse the drill above. Straight up pays 35 to 1, plus your bet back.