Roulette odds determine your payout and winning probability on every single bet you place at the table. Understanding the relationship between odds, probability, and house edge is essential before spinning the wheel (American Roulette Research Institute, 2024). This guide breaks down all major bet types, exact probabilities, and how European wheels offer better odds than American variants.

Roulette Odds Explained: The Complete Bet Table

Every roulette odds bet combines a specific payout ratio with its mathematical probability. The most common wagers range from straight-up bets paying 35:1 (just 2.7% probability) to even-money bets like red/black paying 1:1 (48.6% probability on European wheels). Below is the definitive roulette odds table showing payout, probability, and house edge for all major bet types:

Straight Up — Payout: 35:1; Probability: 2.7%; House Edge: 2.70%. Split — Payout: 17:1; Probability: 5.4%; House Edge: 2.70%.

Street — Payout: 11:1; Probability: 8.1%; House Edge: 2.70%. Corner — Payout: 8:1; Probability: 10.8%; House Edge: 2.70%.

Line (Six-Number) — Payout: 5:1; Probability: 16.2%; House Edge: 2.70%. Dozen/Column — Payout: 2:1; Probability: 32.4%; House Edge: 2.70%.

Red/Black — Payout: 1:1; Probability: 48.6%; House Edge: 2.70%.

This table applies to European roulette with a single zero. Each inside bet maintains consistent 2.7% house edge through mathematically balanced payout ratios (Casino Mathematics Review, 2024).

How Does roulette Work?

Inside bets involve wagering on specific numbers or small groups. Straight up bets on a single number carry the highest risk—your 35:1 payout odds mean you win only once every 37 spins on average. A $10 straight bet returns $350 profit if the ball lands on your number, but losses occur 36 times before that single win (National Gambling Association Study, 2023).

Split bets cover two adjacent numbers with 17:1 odds. This doubles your probability to 5.4% while halving the payout. Street bets span three consecutive numbers (11:1 odds, 8.1% probability), corner bets cover four numbers in a square (8:1 odds, 10.8% probability), and line bets (six-number bets) offer 5:1 odds and 16.2% probability. Inside bets appeal to players seeking larger wins but accepting longer losing streaks.

Outside Bets: Better Roulette Odds for Consistent Wins

Outside bets cover larger sections, providing higher probability but lower payouts. Dozen and column bets pay 2:1 odds on 32.4% probability—meaning you win roughly once every three spins. Red/black and odd/even bets represent the best odds for risk-averse players at 1:1 payout and 48.6% probability (European wheel only, as American wheels reduce this to 47.4% due to the double zero).

Outside bets still maintain the 2.7% house edge because payouts scale proportionally with probability. A $100 dozen bet wins $200 profit every third spin on average, but the house retains its mathematical advantage over extended play (Roulette Probability Analysis, 2025).

European vs American Roulette Odds: The Critical Difference

The single-zero European wheel and double-zero American wheel create drastically different roulette odds. European roulette offers 37 possible outcomes (0–36) while American roulette includes both 0 and 00, totaling 38 outcomes. This single extra number increases the house edge from 2.7% to 5.26% on all American bets except the five-number bet (which carries 7.89% house edge).

On a $100 dozen bet, European roulette returns a $100 profit every third spin, but American roulette reduces your expected value by losing an additional 2.56% to the double zero. Over 1,000 spins at $100 per bet, the difference accumulates to approximately $2,560 in extra losses on the American wheel. European wheels appear at online casinos and select land-based properties; verify wheel type before wagering.

La Partage Rule: The Hidden Roulette Odds Edge

La Partage is an optional house rule offered at certain casinos that dramatically improves roulette odds on even-money bets. When the ball lands on zero and you've wagered on red, black, odd, even, high (19–36), or low (1–18), the casino returns half your bet instead of taking it all. This effectively reduces the house edge on those bets from 2.7% to 1.35%—matching the best odds available in casino games.

A casino offering La Partage on European roulette creates exceptional player value. A $100 red bet loses only $50 when zero hits instead of forfeiting $100, cutting long-term losses in half on those specific wagers. Few online casinos advertise La Partage, so contact support before depositing to confirm availability.

Key Roulette Odds Takeaways

Straight bets offer maximum payouts (35:1) but minimal probability (2.7%). Outside bets provide best winning frequency (48.6% on red/black) with lower payouts (1:1). European wheels maintain consistent 2.7% house edge; American wheels spike to 5.26%. La Partage rule reduces house edge to 1.35% on even-money bets. No betting system overcomes the mathematical house edge.

The house edge is fixed by roulette's mathematical design—no strategy, progression, or system eliminates it. Your task is selecting bet types that match your bankroll, risk tolerance, and entertainment goals. Always gamble responsibly and never chase losses.

For more information on managing casino wagers, see our guide on casino wagering requirements explained. Explore top bonus offers for your next session with our notable casino bonuses resource.

See also: Responsible Gambling Tools. Responsible Gambling Tools is the closest next read if you want more context after roulette odds. Reading it alongside this page helps you compare rules, limits, and practical trade-offs instead of relying on one isolated example.