Online roulette odds determine how often you can expect to win a bet and how much the casino keeps on every spin. European roulette gives the house a 2.70% edge. American roulette nearly doubles that to 5.26%. French roulette, with the La Partage rule, cuts it further to just 1.35% on even-money bets. Knowing those numbers before you sit down changes where you play and what you bet.
This guide explains every bet type, what it pays, what the house edge actually means in dollars, and which bets give you the best shot at keeping your bankroll alive.
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What Are Online Roulette Odds and Why Do They Matter?
Roulette odds tell you two things: the probability that your bet wins, and how much the casino pays you when it does. The gap between those two numbers is the house edge the built-in mathematical advantage the casino holds on every spin.
On a straight-up single-number bet in European roulette, your true chance of winning is 1 in 37. The casino pays you 35 to 1. That one-unit gap across 37 outcomes creates a house edge of 2.70%. In American roulette, the same bet is 1 in 38, but the payout stays at 35 to 1. The double-zero adds one more losing outcome without increasing the payout, pushing the house edge to 5.26%.
The practical difference: on $100 of total wagers, European roulette costs you an expected $2.70. American roulette costs you $5.26. Over a session, that gap compounds fast.
Roulette Odds and Payouts: Full Comparison Table
| Bet Type | Payout | European Odds (1 zero) | American Odds (2 zeros) |
| Single Number (Straight Up) | 35:1 | 2.70% | 2.63% |
| Two Numbers (Split) | 17:1 | 5.41% | 5.26% |
| Three Numbers (Street) | 11:1 | 8.11% | 7.89% |
| Four Numbers (Corner) | 8:1 | 10.81% | 10.53% |
| Five Numbers (Basket) | 6:1 | 13.51% | 13.16% |
| Six Numbers (Six Line) | 5:1 | 16.22% | 15.79% |
| Column | 2:1 | 32.43% | 31.58% |
| Dozen | 2:1 | 32.43% | 31.58% |
| Red / Black | 1:1 | 48.65% | 47.37% |
| Odd / Even | 1:1 | 48.65% | 47.37% |
| High / Low | 1:1 | 48.65% | 47.37% |
The five-number basket bet covering 0, 00, 1, 2, and 3 only exists in American roulette and carries the worst house edge on the table at 7.89%. Avoid it entirely.
Inside Bets: Higher Payouts, Lower Odds
Inside bets are placed on the numbered grid itself. They cover fewer outcomes, which means the payout is higher but winning is less frequent.
Straight Up (Single Number)
You bet on one number. If it hits, you collect 35:1. In European roulette, your probability is 2.70%. That sounds low, but so does any 35-to-1 opportunity. Players who use straight-up bets typically spread across several numbers to balance the payout against coverage.
Split (Two Numbers)
The chip sits on the line between two adjacent numbers. A win pays 17:1, with a 5.41% chance in European roulette. A common approach is to split pairs around a centre number to increase wheel coverage without committing to a dozen separate chips.
Street (Three Numbers)
The chip covers an entire row of three. Pays 11:1 at an 8.11% probability. Useful for targeting small sections of the wheel systematically.
Corner (Four Numbers)
Placed at the intersection of four numbers, this bet pays 8:1. In European roulette, it wins roughly 10.8% of the time a reasonable balance of coverage and return for players who want inside exposure without full commitment to single numbers.
Six Line (Six Numbers)
Covering two adjacent rows of three numbers each, the six-line pays 5:1 at a 16.22% win rate. This is one of the better inside bets for players trying to bridge the gap between inside and outside strategies.
Outside Bets: Better Odds, Lower Payouts
Outside bets cover large sections of the wheel. They win more often, but the payouts are smaller. The house edge stays the same regardless the only thing that changes is volatility.
Red / Black, Odd / Even, High / Low
These even-money bets cover just under half the wheel. In European roulette, the single zero is the reason the win rate is 48.65% rather than 50%. The zero belongs to neither red nor black, neither odd nor even, neither high nor low. When the ball lands there, all outside bets lose.
These bets keep your bankroll stable the longest. They are the most common choice for players managing session limits, and they interact most directly with strategies like Martingale or D’Alembert though no strategy changes the underlying house edge.
Dozen and Column
Both pay 2:1 and win roughly 32.43% of the time in European roulette. Dozen bets cover 1–12, 13–24, or 25–36. Column bets cover one of three vertical columns on the layout. They offer slightly better payouts than even-money bets without the volatility of inside bets.
How the House Edge Differs Across Roulette Variants
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European Roulette — 2.70% House Edge
The single zero gives the house its margin. With 37 outcomes and a 35:1 payout on single numbers, the casino keeps 1/37 of all money wagered over time. This is the standard most Australian online casinos offer and where most players should start.
American Roulette — 5.26% House Edge
The double zero adds a 38th pocket. Payouts stay identical to European roulette. The result is a house edge that nearly doubles. No bet on the American wheel has better odds than the equivalent bet on a European wheel. Unless a specific bonus or game mechanic tips the equation, there is no reason to choose American roulette over European.
French Roulette — 1.35% House Edge on Even-Money Bets
French roulette uses a single-zero wheel, identical to European. The difference is a rule called La Partage. When the ball lands on zero, even-money bets (red/black, odd/even, high/low) receive half their stake back instead of losing entirely. This halves the house edge on those bets from 2.70% to 1.35%.
Some tables offer a variant called En Prison instead. Rather than returning half the stake immediately, the bet is locked in place for the next spin. If it wins, the full stake is returned. The mathematical outcome is identical to La Partage: a 1.35% house edge. French roulette with La Partage is the best mathematical version of roulette available online.
What the House Edge Means in Practice
Players often treat the house edge as an abstract figure. Here is what it looks like in real betting terms.
Say you start a session with $200 and play 50 spins on even-money outside bets at $10 per spin. Total wagered: $500.
- European roulette: expected loss = $500 × 2.70% = $13.50
- American roulette: expected loss = $500 × 5.26% = $26.30
- French roulette (La Partage): expected loss = $500 × 1.35% = $6.75
The expected loss is not a guarantee sessions deviate from expectation in both directions. But over repeated play, those numbers hold up. Choosing the right variant is the single biggest mathematical decision a roulette player can make.
Roulette Odds and Bonus Wagering
Many Australian casino bonuses require wagering contributions before you can withdraw. Roulette often counts at a reduced rate toward those requirements — sometimes 10%, sometimes not at all. That matters if you claim a bonus and plan to play roulette.
Check the game weighting in the bonus terms before deciding. A $500 bonus with a 35x wagering requirement and 10% roulette contribution means you would need to wager $175,000 on roulette to clear it. At 100% contribution, that drops to $17,500. The two figures are not in the same ballpark.
If roulette is your primary game, look for casinos with higher roulette contribution rates or bonuses that apply without wagering restrictions.
Common Mistakes Players Make with Roulette Odds
Assuming strategies change the house edge. They do not. Martingale, Fibonacci, and D’Alembert are staking systems, not probability changers. They alter session variance but leave the house edge intact.
Playing American roulette by default. Many casinos display American roulette prominently because the higher house edge is more profitable for them. Always filter for European or French variants before sitting down.
Ignoring La Partage when it is available. French roulette with La Partage at 1.35% on even-money bets is materially better than standard European roulette at 2.70%. If the option exists, take it.
Treating inside bets as bad bets. The house edge on a single-number bet is identical to the house edge on a red/black bet in European roulette. The difference is volatility, not expected value. Inside bets carry higher variance, not worse odds.
Missing the basket bet warning. The five-number basket bet in American roulette is the only bet on any standard roulette table with a uniquely worse house edge 7.89% versus 5.26% for every other bet. Avoid it.
Which Bets Give You the Best Odds?
The house edge is fixed regardless of which bet you place in European roulette. But some bets offer more practical value than others depending on your goal.
For session longevity, even-money outside bets (red/black, odd/even, high/low) give you the best chance of staying at the table longest. They limit downswings and keep bankroll swings manageable.
For maximising expected return per dollar wagered, French roulette with La Partage on even-money bets gives you the lowest house edge at 1.35%. That is where the mathematics points.
For the highest potential payout per spin, straight-up single-number bets at 35:1 offer the biggest return on a single outcome. The win rate is low, but the payout compensates when it hits.
Online Roulette Odds vs Live Dealer Roulette Odds
The odds in online roulette and live dealer roulette are governed by the same mathematics. What differs is the game variant available. Live dealer tables at major providers like Evolution and Playtech often include French roulette with La Partage alongside European and American tables. Software-based (RNG) roulette typically offers European as standard with American and French as alternatives.
Live dealer roulette also introduces speed of play as a variable. Live tables average 30–40 spins per hour versus hundreds per hour in automated play. Slower sessions reduce total wagered over a fixed time period, which affects total expected loss even at the same house edge.
Frequently Asked Questions
What are the best odds in online roulette?
French roulette with the La Partage rule offers a 1.35% house edge on even-money bets, making it the best mathematical option available at most Australian online casinos.
Does the house edge change based on which bet I place in European roulette?
No. Every bet in European roulette carries a 2.70% house edge except the basket bet, which only exists in American roulette. The bet type changes variance, not the underlying house advantage.
Why is American roulette worse for players?
The double-zero pocket gives the casino a 5.26% edge compared to 2.70% in European roulette. Payouts are identical across both variants, so the extra zero pocket costs players money with no compensating benefit.
Can roulette strategies improve my odds?
No strategy changes the house edge. Systems like Martingale adjust how much you bet after wins and losses, which affects variance and session risk. The mathematical edge remains the same regardless of betting pattern.
Does roulette count toward bonus wagering requirements?
Often at a reduced rate typically 10% to 20% in most Australian casino bonus terms. Check the game weighting before claiming any bonus if roulette is your primary game.
What is La Partage and where can I find it?
La Partage is a French roulette rule that returns half of even-money bets when the ball lands on zero. It halves the house edge on those bets to 1.35%. It is available at select online casinos running Evolution or similar live dealer providers, and on some software-based French roulette titles.
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