Roulette Payout Calculator – Calculate Your Odds & Winnings
Use this free roulette payout calculator to see exactly what every wager at the table pays — and what it actually costs you. Pick a variant, choose a bet, enter your stake. The calculator returns the gross payout, the win probability, and the underlying house edge in the same view. No guesswork, no spreadsheet.
European, American and French wheels each behave differently under the same bet. La Partage and En Prison shift the numbers further. The calculator handles all of it.
If you have ever stared at a roulette layout wondering whether a corner pays more than a split, or whether French rules actually change your expected loss in any meaningful way, those are the right questions. Roulette looks chaotic, but every wager on the felt has a fixed payout, a fixed probability, and a fixed long-term cost. The maths is settled. The only thing that varies is whether you can recall it under the lights — and whether the version you sat down to is quietly tilted in your favour.
That is the gap this tool is built to close. It takes any bet, any common variant, applies La Partage or En Prison where they belong, and returns both the payout ratio and the true house edge. What follows explains how to read the output, why variant choice outweighs bet choice, and which probability traps catch even experienced players.
- What the calculator actually does
- Payouts versus odds: the distinction that costs players money
- Variant selection outweighs bet selection
- La Partage and En Prison: rules that halve the edge
- Worked examples: reading the output
- From single bets to session math
- Common mistakes with payout tables
- Frequently asked questions
What the calculator actually does
The tool answers two questions for any bet you place:
- If this bet wins, how much do I receive? The payout ratio — 35:1 on a straight-up number, 2:1 on a column, 1:1 on red or black. These ratios are identical across standard variants.
- What does this bet actually cost in the long run? Here the variant matters. The same red/black wager costs 2.70% on European, 5.26% on American, and as little as 1.35% on French with La Partage. The payout ratio hides this. Only the house edge reveals it.
Select your variant, pick a bet, enter a stake. The output gives gross win, net profit, win probability, and edge. No marketing language, no “lucky number” suggestions. Just the structure that governs every spin you will ever play.
Quick frame of reference: every bet on a given wheel carries the same expected loss per unit wagered, with one exception — the basket bet on American roulette (0-00-1-2-3), which sits at 7.89%. Otherwise the edge is structural to the wheel, not the bet. That is the most useful single fact in the game.
Payouts versus odds: the distinction that costs players money
Players routinely conflate three numbers that mean very different things: the payout, the true odds, and the house edge. Confusing them is how someone ends up convinced that one bet is “better” than another when, mathematically, both lose the same percentage over time.
A straight-up bet pays 35:1. The true odds of any single number landing on a European wheel are 36:1 one winning slot out of 37 total. That single-unit gap, between the 35 you collect and the 36 you statistically deserve, is the entire house edge, smeared across every bet on the layout. On an American wheel the gap doubles to two units out of 38, which is why the edge rises to 5.26%.
The same logic applies to even-money bets. Red pays 1:1, but the probability of red landing on a European wheel is 18/37 — 48.65%, not 50%. The missing percentage is the zero, which is neither red nor black and which, without special rules, takes your stake outright. Internalising this difference is what separates conscious play from a guessing game.
For every bet’s payout ratio and probability side by side, see the full odds and payouts breakdown. For the derivation of the edge itself, the house edge explainer walks through the maths.
Variant selection outweighs bet selection
The single most useful habit in roulette is choosing the wheel before the bet. The difference between European and American is roughly a 2.56-point swing in house edge, and it compounds aggressively. Over 100 spins at $10 a piece, the expected cost difference is about $25. Over 1,000 spins it becomes $250 for making the same decisions on a worse wheel.
| Variant | Pockets | House edge (standard) | With La Partage / En Prison |
|---|---|---|---|
| European | 37 | 2.70% | — |
| French | 37 | 2.70% | 1.35% on even-money bets |
| American | 38 | 5.26% | — |
| Single zero (no special rules) | 37 | 2.70% | — |
| Double zero with Surrender | 38 | 5.26% | 2.63% on even-money bets |
That table is the entire case for variant matters. An even-money bet on French roulette with La Partage costs less than half what the same bet costs on American. Same wheel layout in every meaningful respect, same bet types, same payouts — different structural cost.
The American wheel exists for historical and casino-economic reasons. It is not a better game by any player-facing metric. If a European or French table is available at the same stakes, that is where serious play belongs.
La Partage and En Prison: rules that halve the edge
Two French rules handle what happens when zero lands on an even-money bet. Both roughly halve the cost of that style of play. Most casual players have never heard of either.
La Partage — “the divide.” When zero lands and you are on red/black, odd/even or high/low, you lose only half your stake. The other half is returned. Because the zero is the entire source of edge on even-money bets, halving its impact halves the edge. 2.70% becomes 1.35%.
En Prison — “in prison.” When zero lands, your stake is held over to the next spin instead of taken. Win the next spin and the original stake is returned (no profit). Lose it and the stake is gone. Mathematically En Prison produces the same 1.35% edge over time. At the table it feels different — binary rather than a clean half-loss — but the long-run cost is identical.
Important caveat: La Partage and En Prison apply only to even-money bets. They do not protect columns, dozens, splits, corners or straight-ups. A player at a French table betting mostly on numbers gets the standard 2.70%, the same as European — not the reduced 1.35%.
Worked examples: reading the output
Example 1: $20 on red, European roulette
- Payout ratio: 1:1
- Win probability: 18/37 = 48.65%
- Gross win on success: $40 ($20 stake plus $20 winnings)
- Expected value: −$0.54 per spin (2.70% of stake)
Place this bet 100 times at $20 and the expected long-run loss is $54. Real sessions will swing wildly around that number — that is variance, not a flaw in the maths.
Example 2: $20 on red, French roulette with La Partage
- Payout ratio: 1:1 on win, half-loss on zero
- Win probability: 18/37 = 48.65%
- Zero probability: 1/37 = 2.70%, but you lose $10 instead of $20
- Expected value: −$0.27 per spin (1.35% of stake)
Same wheel layout, identical-looking bet — half the long-run cost. Over 100 such bets the expected loss is $27 instead of $54.
Example 3: $5 straight-up on 17, American roulette
- Payout ratio: 35:1
- Win probability: 1/38 = 2.63%
- Gross win on success: $180 ($5 stake plus $175 winnings)
- Expected value: −$0.26 per spin (5.26% of stake)
The absolute expected loss here ($0.26) looks similar to Example 2 ($0.27), but the stake is a quarter of the size. Per dollar wagered, the American straight-up costs nearly four times what the French even-money bet costs. That is what variant choice does at the dollar level.
From single bets to session math
A payout calculator prices a single bet. Session math prices an evening. The link is a multiplier most players underestimate: total wager volume.
Live roulette runs around 30 spins an hour. RNG roulette online comfortably hits 60–80. Turbo and auto-roulette formats exceed 100. Bet $10 a spin at a turbo table for three hours and you have wagered $3,000 in total, even if your bankroll never dropped below $200. At 2.70% the expected loss is $81. At 5.26% it is $158. At 1.35% it is $40.50.
This is why pace amplifies variant choice. A high-edge wheel at a high-velocity format is the worst environment in the game. A low-edge wheel at a moderate pace, with disciplined bet sizing, is one of the cheaper forms of casino entertainment available.
To watch this play out without risking money, run a session in the roulette simulator. A few thousand spins under any rule set, and the expected loss converges to the theoretical edge in front of you. It is the cleanest way to internalise why “I felt lucky” is not a strategy.
Common mistakes with payout tables
- Treating payout as profit. A 35:1 payout means 35 units of profit plus the original stake returned. Some sources quote this as “36 for 1” — same bet, different notation. Worth checking which convention a chart uses before drawing conclusions.
- Assuming better odds exist on the layout. They do not. On a given variant every bet (the American basket aside) carries the same house edge. A column is not “safer” than a straight-up in any meaningful sense. Lower variance, same expected loss per unit wagered.
- Ignoring rule variations. Two casinos can both label a table “French Roulette” and offer materially different games depending on whether La Partage applies, whether En Prison is offered, and whether either rule covers all even-money bets or only red/black. Check the rules screen before sitting down.
- Misreading announced bets. French roulette includes called bets — Voisins du Zéro, Tiers du Cylindre, Orphelins — that are combinations of straight-ups and splits. The calculator decomposes these into their components. The payout is just the weighted average of the underlying wagers, not a separate rule.
For the rules behind La Partage and En Prison, and how they fit into broader play, see the La Partage and En Prison breakdown.
Frequently asked questions
Does the calculator work for live dealer roulette?
Yes. The maths is identical for live dealer and RNG roulette — only the presentation differs. Pick the variant the live table uses (European, French, American, or a specialty format like Lightning Roulette) and the output is the same. Multiplier-based games like Lightning change the payout structure on straight-ups but not the underlying probability.
Why is the American basket bet flagged separately?
The 0-00-1-2-3 five-number bet is the only wager in standard roulette that does not share its variant’s edge. It pays 6:1, but the true odds put it at 7.89% — worse than every other American bet. The calculator flags it because no informed player should place it. It is a historical artefact of older table design.
Can the calculator factor in bonuses or wagering requirements?
Not directly. The calculator returns expected value for a clean bet. Bonus money carries wagering requirements that distort effective value — sometimes favourably, often not — and roulette typically contributes only a fraction of each bet toward those requirements. Evaluate offers separately.
What is the lowest house edge realistically available?
For practical purposes, 1.35% on even-money French roulette with La Partage is the floor at most regulated casinos. A handful of operators offer “No Zero Roulette” at 0.00% edge, but those are rare, often restricted to high-roller rooms, and frequently bundled with promotional limits. Treat them as exceptions.
Are the calculator’s results accurate for partial wins on split or corner bets?
Yes. A split, corner or street bet wins when the ball lands on any of its covered numbers, and the payout in those cases is fixed — 17:1 for a split, 8:1 for a corner, 11:1 for a street. The calculator returns the payout for a winning outcome and the probability across all covered numbers in one view.
Does betting more per spin change the house edge?
No. The house edge is a percentage of stake — it scales linearly. Bet $5 or bet $500, the same percentage flows to the casino over time. Higher stakes change the dollar amount of expected loss and the variance of outcomes, but not the underlying cost ratio.