If you’re choosing between European roulette vs American roulette, you’re already doing something smart: you’re focusing on the one detail that most directly affects your long-term results. While both games look similar, the wheel’s pocket configuration changes the math behind every spin.
Here’s the core takeaway: European roulette uses a single zero (0), while American roulette adds a double zero (00). That single extra pocket increases the house edge significantly, even though the payouts on the table (like 35:1 on a straight-up number) are typically the same.
This guide breaks down the difference in a practical, player-friendly way, including roulette rules that matter, quick visuals, and why French roulette en prison (and la partage) can be especially appealing on even-money bets.
At-a-glance comparison: European vs American vs French roulette
| Roulette version | Wheel pockets | Green pockets | Typical house edge | Notable rule features |
|---|---|---|---|---|
| European roulette | 37 (1–36 + 0) | 0 | About 2.70% | Single-zero wheel; standard payouts |
| American roulette | 38 (1–36 + 0 + 00) | 0 and 00 | Roughly 5.26% | Double-zero wheel; often includes a 0-00-1-2-3 “top line” bet |
| French roulette | 37 (1–36 + 0) | 0 | About 2.70% overall; about 1.35% on even-money bets with special rules | Single-zero wheel; may offer la partage or en prison on even-money bets |
All three versions typically share the same basic betting categories and the same nominal payouts on most bets. The big performance lever is the number of green pockets and whether special French rules apply.
Single zero vs double zero: why one extra pocket matters
The difference between single zero vs double zero is simple to see and powerful in impact.
- European roulette: numbers 1 to 36 plus a single green 0 (37 pockets total).
- American roulette: numbers 1 to 36 plus green 0 and 00 (38 pockets total).
Those green pockets are what create the casino’s mathematical advantage because most bets pay as if there were only 36 numbers. For example, a straight-up bet on a single number pays 35:1 in most casinos, even though you’re choosing 1 number out of 37 (European) or 38 (American).
House edge explained (with the exact percentages players look for)
The house edge in standard roulette with typical payouts is closely tied to how many green pockets exist on the wheel.
- European roulette house edge: 1 green pocket out of 37 →1 / 37 ≈ 2.70%
- American roulette house edge: 2 green pockets out of 38 →2 / 38 ≈ 5.26%
What that means in practical terms is that, on average and over many bets, the expected cost per unit wagered is higher in American roulette. The game still delivers the same fast pace and excitement, but the extra green pocket makes a real difference to bankroll longevity.
A quick example using expected loss
Expected loss doesn’t predict what happens in the next 10 spins. It’s a long-run average, but it’s great for comparing games.
- If you wager 100 units over time on European roulette, the expected loss is about 2.70 units.
- If you wager 100 units over time on American roulette, the expected loss is about 5.26 units.
This is why many experienced players prioritize a single-zero wheel when they have the choice: the entertainment can be the same, but the mathematical “price” of each spin is lower.
Wheel layout: what you’ll actually see on the table
Most roulette tables share the same basic betting grid for numbers 1–36, but the layout around zero is where the versions diverge.
European roulette wheel and table
- Wheel: 0 plus 1–36
- Table layout: typically a single 0 slot at the top of the betting grid
American roulette wheel and table
- Wheel: 0 and 00 plus 1–36
- Table layout: a 0 and 00 at the top of the betting grid
That extra 00 isn’t just cosmetic. It changes the probability of every outcome and therefore increases the edge, even though many payouts look identical.
Bet types and payouts: “identical payouts” doesn’t mean identical value
Roulette is popular because it’s easy to learn, and the betting menu is consistent across versions. Below is a helpful overview of common bets and their typical payouts.
| Bet type | How it works | Typical payout | Common name |
|---|---|---|---|
| Straight up | 1 number | 35:1 | Single number |
| Split | 2 adjacent numbers | 17:1 | Two-number bet |
| Street | 3 numbers in a row | 11:1 | Row bet |
| Corner | 4-number block | 8:1 | Square |
| Line | 6 numbers (two rows) | 5:1 | Six-line |
| Dozen | 1–12, 13–24, or 25–36 | 2:1 | 12 numbers |
| Column | One of the 3 columns | 2:1 | 2-to-1 |
| Even-money outside bets | Red/Black, Odd/Even, 1–18/19–36 | 1:1 | Outside bets |
Here’s the key point: the payout table doesn’t “fix” the additional green pocket. So while the payouts are often the same, the value of those bets changes between a 37-pocket and 38-pocket wheel.
French roulette rules: la partage and en prison (and why players love them)
French roulette uses the same single-zero wheel as European roulette, but it may include special rules that improve outcomes on even-money bets.
The two most common are:
- La partage: if the ball lands on 0, you lose only half of an even-money bet (like Red/Black). The other half is returned.
- En prison: if the ball lands on 0 on an even-money bet, your stake is “imprisoned” for the next spin. If your bet wins on the next spin, you get your stake back (usually without profit); if it loses, you lose the stake. (House rules can vary slightly, but the intent is consistent.)
What “French roulette en prison” does to the house edge
On a standard European single-zero wheel, even-money bets have a house edge of about 2.70%. With la partage (and typically with en prison in long-run terms), that effective edge on even-money bets is reduced to about 1.35%.
That’s a meaningful improvement for players who enjoy simple bets like Red/Black or Odd/Even. The game still has the same fun rhythm, but your bankroll can generally last longer compared to the same style of play on a standard single-zero table without these rules.
Betting-table “visual”: inside vs outside bets (simple mental map)
If you’re learning roulette rules, it helps to think in two zones:
Inside bets (higher variance, higher payouts)
- Straight up, split, street, corner, line
- More precise predictions, bigger payouts, less frequent wins
Outside bets (lower variance, simpler choices)
- Red/Black, Odd/Even, 1–18/19–36
- More frequent wins, smaller payouts
- Where la partage and en prison can add standout value on French roulette
Players often choose outside bets for steady pacing and inside bets for bigger “hit” moments. The best version of the game is the one that matches your style while keeping the odds as favorable as possible.
Availability: where you typically find each roulette version
Where you play often determines what you’ll see on the floor (or in a live casino lobby). While every casino is different, these are common patterns:
American roulette availability
- Common in many US casinos, especially on main gaming floors
- Often the default option in venues that cater primarily to American-style table games
European roulette availability
- Widely found in European casinos
- Also very common in stake.com and live dealer formats that offer single-zero wheels
French roulette availability
- Common in parts of Europe and in online roulette lobbies labeled French roulette
- Often chosen specifically for la partage or en prison rule sets
If your goal is to maximize value, the simplest approach is to look for single-zero wheels first, then prioritize tables that clearly state la partage or en prison if you like even-money bets.
How to choose the best roulette game for your goals
Choosing roulette can be refreshingly straightforward once you know what to check. Use this quick checklist the next time you’re deciding between tables.
1) Start with the wheel: single zero vs double zero
- If you see 0 only: you’re looking at European-style odds (lower house edge than American).
- If you see 0 and 00: you’re looking at American-style odds (higher house edge).
2) If you like even-money bets, look for French rules
- French roulette en prison and la partage can reduce the effective house edge on even-money bets to about 1.35%.
- This can be especially appealing for players who enjoy Red/Black, Odd/Even, and 1–18/19–36.
3) Match the game to the experience you want
- If you want the most value per spin: prioritize French roulette with la partage or en prison on even-money bets.
- If you want classic simplicity and strong odds: choose European roulette (single zero).
- If you’re playing where American tables are the norm: you can still enjoy the game by managing session length and stakes, while being aware of the higher house edge.
Common rule variations worth noticing (especially online)
Beyond the wheel, a few table rules can influence your experience. Not every rule changes the house edge dramatically, but knowing what you’re looking at helps you play with confidence.
American “top line” bet
Some American roulette tables offer a special bet covering 0, 00, 1, 2, 3 (often called the top line or basket). Rules and payouts can vary by venue, so it’s worth reading the table signage or game help if you see it offered.
French betting labels and layout
French roulette tables may display French terms for outside bets (for example, sections for even-money and grouping bets). The underlying concept is the same: you’re choosing outcomes or groups of outcomes, but the table presentation may look more traditional.
Why the house edge difference can feel bigger than the percentage suggests
At first glance, 2.70% vs 5.26% might look like a small difference. In play, it can be noticeable because roulette is often a fast, repeat-betting game. The more spins you play, the more the long-run math has room to show itself.
That’s why choosing a single-zero game is a popular “quiet win” for players: you aren’t changing the fun or complexity, but you are improving the expected value of each wager.
FAQ: European roulette vs American roulette (quick answers)
Is European roulette better than American roulette?
From an odds perspective, European roulette generally offers better value because the house edge is about 2.70% on a single-zero wheel versus roughly 5.26% on a double-zero wheel. Many players choose European for this reason when it’s available.
Do both games pay 35:1 on a straight-up bet?
Typically, yes: both European and American roulette commonly pay 35:1 on a straight-up number. The difference is that you’re picking 1 out of 37 pockets (European) or 1 out of 38 pockets (American), which is why the house edge is higher in the American version.
What does “en prison” mean in French roulette?
French roulette en prison is a rule usually applied to even-money bets. When the ball lands on 0, your bet is held (“imprisoned”) for the next spin instead of losing immediately, giving you a chance to recover your stake depending on the next outcome.
What is la partage?
La partage is another French roulette rule for even-money bets. If the ball lands on 0, you lose only half your stake and the other half is returned. This reduces the effective house edge on those bets to about 1.35%.
Bottom line: pick the wheel first, then pick the rules
When comparing European roulette vs American roulette, the decision can be both simple and rewarding: choose the wheel with fewer green pockets whenever you can.
- For the best all-around odds, choose European roulette (single zero) with a house edge around 2.70%.
- If you enjoy even-money bets, look for French roulette with la partage or en prison to reduce the effective edge to about 1.35% on those bets.
- If you’re playing American roulette, enjoy the classic format while remembering the double zero increases the house edge to roughly 5.26%.
Knowing these differences helps you choose a game that fits your style and stretches your entertainment value, spin after spin.
