Roulette looks simple on the surface: pick a number or a group of numbers, spin the wheel, and see where the ball lands. But one small design choice changes the math in a big way: whether the wheel has one zero or two. That’s the heart of the European roulette vs American roulette debate.
Both versions can be fun, fast-paced, and easy to learn. The best part is that you don’t need complex strategy to make a smart choice. If you understand how the wheel is built and how that affects the house edge, you can immediately put yourself in a more player-friendly position when you play roulette.
The core difference: single-zero vs double-zero
The biggest distinction is the wheel configuration:
- European roulette has 37 pockets: numbers 0 to 36.
- American roulette has 38 pockets: numbers 0 to 36 plus 00.
That extra 00 pocket might not look like much, but it increases the casino’s advantage on virtually every standard bet. Importantly, the game usually keeps the same advertised payout for many bets (for example, the same 35:1 payout on a straight-up number), even though the chance of winning is now slightly lower. That gap is exactly where the house edge comes from.
European vs American roulette house edge (with real numbers)
When roulette uses standard rules (no special rule variations), the house edge is driven by how many zero pockets exist.
| Variant | Wheel pockets | Zero pockets | House edge (typical) | Why it changes |
|---|---|---|---|---|
| European roulette | 37 (0–36) | 1 (0) | About 2.70% | Single zero reduces the casino’s built-in advantage |
| American roulette | 38 (0–36, 00) | 2 (0 and 00) | About 5.26% | Extra 00 increases non-winning outcomes |
These percentages come from simple probability:
- European: the player’s disadvantage is roughly 1 / 37 (≈ 2.70%).
- American: the player’s disadvantage is roughly 2 / 38 (≈ 5.26%).
Positive takeaway: choosing European roulette (or any single-zero table) can nearly halve the house edge compared to American roulette under standard rules. Over many spins, that’s a meaningful value boost.
Payouts are similar, but your odds are not
One reason American roulette is less favorable is that it commonly keeps the same payout schedule while adding a pocket that makes winning slightly less likely.
For instance, both variants typically pay 35:1 on a straight-up bet (a single number). But the chance of hitting that number differs:
- European straight-up win probability: 1 / 37
- American straight-up win probability: 1 / 38
That’s a subtle change per spin, but it adds up because the payout is not adjusted upward to compensate. The same principle applies across most common bet types.
Common roulette bets (and why European feels “friendlier”)
Roulette betting is often grouped into inside bets (placed on specific numbers or small clusters) and outside bets (covering larger groups, like red/black). The bet menu is largely the same in European and American roulette, but the zero structure impacts them all.
Inside bets (higher volatility, bigger payouts)
- Straight-up (1 number): pays 35:1
- Split (2 numbers): pays 17:1
- Street (3 numbers): pays 11:1
- Corner (4 numbers): pays 8:1
- Six line (6 numbers): pays 5:1
Outside bets (lower volatility, steadier hit rate)
- Red/Black: pays 1:1
- Odd/Even: pays 1:1
- High/Low (1–18 / 19–36): pays 1:1
- Dozens (1–12, 13–24, 25–36): pays 2:1
- Columns (12 numbers per column): pays 2:1
Benefit-driven insight: if you enjoy outside bets (like red/black) because they hit more often, European roulette can feel noticeably better because there’s only one zero disrupting those even-money outcomes instead of two.
The “zero effect” on even-money bets (why 00 matters)
Even-money bets (red/black, odd/even, high/low) are popular because they’re simple and provide frequent wins. But zeros are the built-in “breaker” that stops these bets from being true 50/50 outcomes.
In European roulette:
- There is one number (0) that causes an even-money bet to lose (under standard rules).
In American roulette:
- There are two numbers (0 and 00) that cause an even-money bet to lose (under standard rules).
That additional losing pocket is a major reason American roulette carries a higher house edge. The practical benefit for players is straightforward: if you’re playing for entertainment and want your bankroll to last longer, single-zero tables generally deliver better value per spin.
European roulette rules that can reduce the house edge
Many European roulette tables (especially in European casinos and online lobbies labeled accordingly) may offer rule variations designed specifically for even-money bets. Two famous ones are La Partage and en prison.
La Partage (often the best-value standard roulette rule)
With La Partage, when you place an even-money bet and the ball lands on 0:
- You typically lose only half your even-money stake (instead of the full amount).
This rule can reduce the house edge on even-money bets in European roulette from about 2.70% to about 1.35%. For players who like red/black or odd/even, that’s a meaningful improvement without changing how you play.
En prison (a close cousin to La Partage)
With en prison, when you place an even-money bet and the ball lands on 0:
- Your bet is “imprisoned” for the next spin rather than losing immediately.
- If your even-money bet wins on the next spin, you generally get your stake back (no profit).
- If it loses on the next spin, you lose your stake.
While the exact procedures can vary slightly by venue, the player-friendly intent is similar: it softens the impact of the zero on even-money wagers and can bring the effective edge on those bets close to 1.35% in single-zero roulette.
Bottom line benefit: if you see European roulette with La Partage (or en prison), you’re often looking at some of the best standard roulette conditions available on even-money bets.
Wheel order and table layout: they look similar, but they’re not identical
European roulette and American roulette share the same basic concept, but you’ll often notice differences in both wheel number order and betting layout.
Wheel number order
The sequence of numbers around the wheel is not simply 0, 1, 2, 3, and so on. Instead, roulette wheels use a fixed order designed to spread numbers out. The European and American wheels typically use different sequences, and the American wheel must incorporate the 00 pocket as well.
Why this matters (practically): it mostly affects familiarity and visual comfort rather than changing the underlying odds. The odds are determined by the number of pockets and the rules, not by the order of numbers around the rim.
Betting layout (the felt)
The table layout is also slightly different:
- On European tables, you’ll see a single 0 area.
- On American tables, you’ll see both 0 and 00, which changes where certain bets can be placed and how the top of the layout is arranged.
Player-friendly outcome: once you recognize the layout, you can quickly spot whether you’re about to play a single-zero or double-zero game—an easy, high-impact decision.
Which roulette variant is more common (and where)?
Availability often depends on geography and venue style:
- European (single-zero) roulette is widely offered in European casinos and is commonly available online.
- American (double-zero) roulette is more common in many U.S. venues, especially traditional land-based casino floors.
Good news for players: the growth of online roulette has made single-zero and European-style rules easier to find for many audiences, even if local brick-and-mortar options lean double-zero.
A quick decision guide: choosing the best roulette table
If your goal is to get more entertainment and value from your bankroll, choosing the right table is the biggest “strategy” advantage roulette realistically offers.
Pick European roulette when you can
- Choose single-zero (0) over double-zero (0 and 00).
- It typically means a lower house edge: about 2.70% instead of 5.26%.
Look for La Partage or en prison if you like even-money bets
- If you enjoy red/black, odd/even, or high/low, these rules can improve the value of those bets.
- La Partage can reduce the even-money edge to about 1.35% on European roulette.
Use the layout as a fast “value check”
- If you see 00, you’re looking at an American-style wheel and a higher built-in edge under standard rules.
- If you see only 0, you’re in the more player-friendly camp.
European vs American roulette: side-by-side summary
| Feature | European roulette | American roulette |
|---|---|---|
| Pockets | 37 (0–36) | 38 (0–36 plus 00) |
| Zeros | Single zero (0) | Double zero (0 and 00) |
| Straight-up payout | 35:1 (typical) | 35:1 (typical) |
| House edge (standard rules) | About 2.70% | About 5.26% |
| Extra value rules | Often includes La Partage or en prison on some tables | Less commonly offers equivalent edge-reducing rules |
| Where it’s common | Europe and online lobbies | Many U.S. casino floors |
Does American roulette ever make sense to play?
From a pure odds perspective, single-zero games are typically the stronger pick. Still, American roulette can be enjoyable and may be the most accessible option in certain locations. If it’s the only wheel available, you can still make smart choices by:
- Setting a clear budget and session length to keep the experience fun and controlled.
- Choosing bet types that match your risk comfort (outside bets for lower volatility, inside bets for higher volatility).
- Understanding that the 00 increases the long-run cost of play compared to single-zero roulette.
Benefit-focused mindset: even when conditions aren’t ideal, informed play helps you get what most people want from roulette—smooth gameplay, simple decisions, and a consistent entertainment rhythm.
FAQ: quick answers about European and American roulette
Is European roulette always better than American roulette?
In most standard settings, yes, because the single-zero wheel typically has a lower house edge (about 2.70% vs about 5.26%). Even better is European roulette with La Partage or en prison for even-money bets.
Do the different wheel number orders change the odds?
No. The number order may change the look and feel of the wheel, but the core odds come from the number of pockets and the payout rules.
Do both versions pay 35:1 on single numbers?
Typically, yes: both European and American roulette commonly pay 35:1 on a straight-up bet. The difference is that American roulette has an extra pocket (00), which slightly lowers the probability of hitting your number.
What’s the simplest way to identify a better roulette table?
Look for the absence of 00. A single 0 is usually your cue that you’re on a more player-friendly roulette variant. If you also see La Partage or en prison rules posted, that’s another strong positive.
Takeaway: one extra pocket makes a big difference
If you remember just one thing, make it this: European roulette’s single-zero wheel gives you better odds than American roulette’s double-zero wheel under standard rules. Both games share familiar bets and the classic 35:1 straight-up payout, but the added 00 in American roulette materially increases the casino advantage.
For players, that’s empowering: by choosing a single-zero wheel (and ideally a table with La Partage or en prison), you’re making the highest-impact decision you can in roulette—one that helps your bankroll last longer and keeps the experience enjoyable.
