Roulette Odds
Roulette odds describe how often each bet wins and how much it pays. Casino payouts are fixed below 'true' odds - the gap is the house edge.
Bookmark this table. It is the reference behind every strategy on the site.
Full odds table (European)
| Bet | Hit % | True odds | Payout | Gap |
|---|---|---|---|---|
| Single number | 2.70% | 36:1 | 35:1 | 1 unit/37 |
| Split | 5.41% | 35:2 | 17:1 | 1 unit/37 |
| Street | 8.11% | 34:3 | 11:1 | 1 unit/37 |
| Corner | 10.81% | 33:4 | 8:1 | 1 unit/37 |
| Six line | 16.22% | 31:6 | 5:1 | 1 unit/37 |
| Dozen / Column | 32.43% | 25:12 | 2:1 | 1 unit/37 |
| Red / Black / Odd / Even / Low / High | 48.65% | 19:18 | 1:1 | 1 unit/37 |
Full odds table (American)
| Bet | Hit % | True odds | Payout | Gap |
|---|---|---|---|---|
| Single number | 2.63% | 37:1 | 35:1 | 2 units/38 |
| Five-number (0,00,1,2,3) | 13.16% | 33:5 | 6:1 | 3 units/38 |
| Split | 5.26% | 36:2 | 17:1 | 2 units/38 |
| Street | 7.89% | 35:3 | 11:1 | 2 units/38 |
| Corner | 10.53% | 34:4 | 8:1 | 2 units/38 |
| Six line | 15.79% | 32:6 | 5:1 | 2 units/38 |
| Dozen / Column | 31.58% | 26:12 | 2:1 | 2 units/38 |
| Red / Black / Odd / Even / Low / High | 47.37% | 20:18 | 1:1 | 2 units/38 |
The five-number bet is the only bet on the standard layout with a worse-than-5.26% edge. Its 7.89% edge comes from the extra unit gap (3 instead of 2).
Payouts vs true odds in one sentence
Casinos pay slightly less than fair odds on every bet. The shortfall summed across all bets is the house's long-run profit. Every system that places only standard bets inherits this exact percentage gap.
Compound odds (multiple bets per spin)
Strategies placing multiple bets per spin have compound odds. Example: Two Dozens Coverage ($10 on each of two dozens) on European:
- Win one dozen: probability 24/37 = 64.86%. One bet pays 2:1, other loses. Net +$10.
- Lose both (third dozen or zero): probability 13/37 = 35.14%. Both bets lose. Net −$20.
- Expected value per spin: (24/37 × +10) + (13/37 × −20) = −$0.54 = −2.70% of the $20 wagered.
Practical use
Use the table to evaluate any system. Identify the bet types used, multiply each by stake, sum the EVs. If the total is negative (it always is for standard bets), the system loses money long-term.
Cross-reference with Roulette Payouts when designing test setups.