If you have ever wondered why two roulette wheels that look almost identical can produce very different results for your bankroll, the answer is simple: the number of pockets. In a clear European vs American roulette comparison, that extra 00 in American roulette meaningfully changes the math, the odds, and the best way to approach your sessions.
This guide breaks down the most important differences in a practical, player-focused way: pocket counts, exact house-edge percentages, key rule variations like La Partage and En Prison, where each game is commonly found, and what all of that means for risk and strategy.
At-a-glance: European vs American roulette (pockets and house edge)
The fastest way to understand single zero vs double zero roulette is to compare wheel layouts and the theoretical casino advantage (house edge).
| Game type | Pockets | Zeros | Theoretical house edge | Typical venue |
|---|---|---|---|---|
| European roulette | 37 | 0 (single zero) | About 2.70% | Common in Europe and widely available online |
| American roulette | 38 | 0 and 00 (double zero) | Around 5.26% | Common in North America and available online |
| French roulette (variant of European) | 37 | 0 (single zero) | About 2.70% base; can drop to ~1.35% on even-money bets with certain rules | Often in European-style casinos and online tables labeled “French” |
European and American roulette generally offer the same bet types and the same headline payouts (for example, a straight-up number bet typically pays 35:1). The difference is that American roulette adds one more losing pocket for most bets, increasing the roulette house edge.
Why pocket count drives the odds (and why the 00 matters)
Roulette payouts are usually designed around a 36-number game, but the wheel includes zeros that create the casino advantage. Here is the key point for a roulette rules comparison:
- European roulette has numbers 1–36 plus a single zero, for 37 pockets.
- American roulette has numbers 1–36 plus 0 and 00, for 38 pockets.
That extra pocket in American roulette sounds small, but it increases the chance that any given bet loses, while the payouts stay the same. That is why the theoretical edge rises from about 2.70% to around 5.26%.
Concrete example: an even-money bet
Consider a basic even-money bet like Red, Black, Odd, or Even:
- In European roulette, you typically win on 18 outcomes and lose on 19 outcomes (18 opposite outcomes plus the single 0).
- In American roulette, you typically win on 18 outcomes and lose on 20 outcomes (18 opposite outcomes plus 0 and 00).
More losing outcomes with the same 1:1 payout is the entire story behind the higher American roulette house edge.
Bet types and payouts: mostly the same on both wheels
One of the best parts for players is that you do not have to relearn the game when switching between European and American roulette. The core bets and their typical payouts are the same in most casinos and online tables.
Common inside bets
- Straight-up (single number): typically pays 35:1
- Split (two numbers): typically pays 17:1
- Street (three numbers): typically pays 11:1
- Corner (four numbers): typically pays 8:1
- Six line (six numbers): typically pays 5:1
Common outside bets
- Dozens (12 numbers): typically pays 2:1
- Columns (12 numbers): typically pays 2:1
- Even-money bets (Red/Black, Odd/Even, High/Low): typically pay 1:1
This is why the choice between European and American roulette is so powerful: you can keep the same style of betting while improving the underlying math by choosing the wheel with fewer pockets.
French roulette rules: La Partage and En Prison (and why they are player-friendly)
French roulette is typically played on a single-zero wheel (37 pockets). What makes it especially attractive in many cases is that some tables use special rules on even-money bets when the ball lands on 0. These rules can reduce the effective casino advantage on those bets.
La Partage
With La Partage, if you place an even-money bet (such as Red/Black) and the result is 0, you lose only half your stake instead of the full amount.
Practical implication: on a single-zero wheel, this can cut the effective edge on even-money bets from about 2.70% to approximately 1.35%.
En Prison
With En Prison, if you place an even-money bet and the ball lands on 0, your bet is “imprisoned” for the next spin instead of being immediately lost. If your bet wins on the next spin, you typically get your stake back (without additional winnings). If it loses, you lose the stake.
In many practical situations, this produces a similar improvement to La Partage on even-money bets, often described as reducing the effective edge to roughly 1.35% on a single-zero wheel.
If your goal is to stretch your bankroll and keep more value in every spin, a single-zero wheel is already a step up, and a French roulette table with La Partage or En Prison can be even better for even-money bettors.
Where you will usually find each roulette type (land-based and online)
Venue matters because it often determines what rules and wheels are available.
European roulette: common in Europe and widely offered online
- Frequently the default wheel in many European casinos.
- Often a standard option in online casinos, including live dealer tables labeled “European Roulette” and online blackjack.
American roulette: common in North America, also available online
- Traditionally prevalent in many North American casinos.
- Often present online as “American Roulette” and in some live dealer studios.
French roulette: a labeled variant worth seeking out
- More likely to be found in European-style venues or online tables explicitly named “French Roulette.”
- Rules like La Partage and En Prison are typically shown in the table rules, so it pays to check before you play.
Player implications: risk, odds, and bankroll strategy
A smart European vs American roulette decision is less about changing your bets and more about choosing conditions that improve your long-term value. The house edge does not tell you what will happen on the next spin, but it does describe the long-run cost of playing.
1) Bankroll longevity
All else equal, a lower roulette house edge generally means your bankroll tends to last longer over many spins. That can translate into:
- More time at the table for the same budget
- More flexibility to ride out short-term variance
- A better chance to enjoy the full range of the game (inside and outside bets) without feeling rushed
2) Choosing bets that match your volatility preference
European and American roulette both let you tune your experience:
- Higher volatility: inside bets like straight-up (35:1) can bring big swings.
- Lower volatility: outside even-money bets create smaller, steadier swings (though the edge still applies).
If you prefer a steadier pace, combining single zero roulette with even-money bets is a simple, approachable way to play. If you can access French rules like La Partage, you can make those even-money bets more cost-efficient over time (effective edge ~1.35% on those bets).
3) Session planning: make the wheel choice first
Many players focus on patterns or betting systems, but the most reliable improvement is selecting the best underlying rules available. A practical order of operations:
- Pick the wheel with the best odds: prioritize European roulette (2.70%) over American roulette (5.26%) when possible.
- Check for French rules on even-money bets: La Partage or En Prison can improve value to ~1.35% on those specific bets.
- Decide your volatility: outside bets for smoother swings, inside bets for bigger peaks and valleys.
- Set a budget and stop points: a win goal and a loss limit can keep play enjoyable and controlled.
European vs American roulette: which one should you play?
If you are choosing based on player value, the math is straightforward:
- European roulette is typically the better pick because it has 37 pockets and a theoretical house edge of about 2.70%.
- American roulette has 38 pockets and a house edge around 5.26%, so your wagers face a larger built-in casino advantage.
- French roulette can be especially appealing for even-money bettors when La Partage or En Prison applies, reducing the effective edge on those bets to roughly 1.35%.
Quick checklist for a roulette rules comparison before you sit down
Use this short checklist to quickly identify the best table for your goals:
- Wheel type: is it single zero vs double zero?
- House edge posted: European ~2.70%; American ~5.26%.
- Even-money zero rules: are La Partage or En Prison offered?
- Table limits: do minimums and maximums match your bankroll plan?
- Pace: live dealer and automated wheels can move faster, which can affect how quickly variance plays out.
Key takeaways
- The core difference in European vs American roulette is the pocket count: 37 (0–36) vs 38 (0, 00, 1–36).
- That one extra pocket drives a major change in roulette house edge: about 2.70% for European and around 5.26% for American.
- Bet types and payouts are largely the same (for example, straight-up typically pays 35:1), so choosing the better wheel is an easy, high-impact decision.
- French roulette rules like La Partage and En Prison can reduce the effective edge on even-money bets to about 1.35% on a single-zero wheel.
- For many players, selecting a single-zero table first is a simple way to improve value, manage risk, and get more entertainment from the same bankroll.
