If you have ever compared European roulette and American roulette side by side, you have probably noticed they look almost identical from the betting layout to the classic roulette and blackjack payouts. The big value difference is not in the bets you can place or how much they pay when you win.
The key difference is the wheel: 0 vs 00. European roulette uses a single zero pocket, while American roulette uses both 0 and 00. That one extra pocket changes the math in a meaningful way, creating a substantially different house edge and therefore different long-term expected results for players.
Below is a clear, player-focused breakdown of what changes, what stays the same, and how to use these facts to make smarter choices about roulette odds and roulette strategy.
Quick Summary: The One-Sentence Difference
European roulette has 37 pockets (1–36 plus a single 0) for a house edge of about 2.70%, while American roulette has 38 pockets (1–36 plus 0 and 00) for a house edge of roughly 5.26%; payouts and bet types are the same, but European rules like en prison and la partage can reduce the house advantage on even-money bets.
European vs American Roulette: Side-by-Side Comparison
| Feature | European Roulette | American Roulette |
|---|---|---|
| Wheel pockets | 37 pockets (1–36 +0) | 38 pockets (1–36 +0+00) |
| Core difference | Single-zero wheel | Double-zero wheel |
| House edge | About 2.70% | About 5.26% |
| Bet types | Same standard inside and outside bets | Same standard inside and outside bets |
| Payouts | Same payouts (e.g., straight-up 35:1) | Same payouts (e.g., straight-up 35:1) |
| Common special rules | en prison/la partage often available | Less commonly available |
| Typical regional availability | Dominant across Europe and very common online | Common in U.S. land-based casinos |
| Wheel number sequence | Different from American sequence | Different from European sequence |
The Wheel Layout: Why 0 vs 00 Changes Everything
Roulette looks simple: pick a number, color, or group of numbers and see where the ball lands. But the wheel layout determines the true probability of any outcome.
European roulette wheel layout
- Numbers: 1 through 36
- One green pocket: 0
- Total pockets: 37
American roulette wheel layout
- Numbers: 1 through 36
- Two green pockets: 0 and 00
- Total pockets: 38
That extra green pocket is not “just one more option.” It increases the casino’s advantage across virtually every bet, because most bets lose when the ball lands on green.
House Edge Explained: 2.70% vs 5.26% (With Simple Math)
The house edge is the average percentage of each bet the casino expects to keep over the long run. It does not predict short sessions, but it is extremely useful for comparing games.
European roulette house edge (single zero)
On a European wheel there are 37 pockets. On an even-money bet (like Red), you win if the ball lands on one of 18 red numbers, lose if it lands on one of 18 black numbers, and also lose if it lands on green 0.
- Probability of winning Red: 18/37
- Probability of losing Red: 19/37 (18 black + 1 zero)
Because the payout for an even-money bet is 1:1, the single green pocket creates the house advantage. The resulting house edge is about 2.70%.
American roulette house edge (double zero)
On an American wheel there are 38 pockets. For the same even-money bet (like Red):
- Probability of winning Red: 18/38
- Probability of losing Red: 20/38 (18 black + 0 + 00)
That second green pocket doubles the “extra loss” pressure. The resulting house edge is roughly 5.26%.
Practical takeaway: European roulette offers a meaningfully better mathematical deal for players than American roulette, even though the table looks almost the same.
Payouts and Bet Types: What Stays the Same
One reason roulette is so approachable is that the bet menu is consistent across the main variants. In both European roulette and American roulette, the standard bets are available and the payout schedule typically matches.
Common roulette bets (both versions)
- Straight-up (single number): pays 35:1
- Split (two numbers): pays 17:1
- Street (three numbers): pays 11:1
- Corner (four numbers): pays 8:1
- Six line (six numbers): pays 5:1
- Dozens (1–12, 13–24, 25–36): pays 2:1
- Columns (12 numbers): pays 2:1
- Even-money outside bets (Red/Black, Odd/Even, 1–18/19–36): pays 1:1
Important nuance: Even with identical payouts, the roulette odds (true chances of winning) differ because the total number of wheel pockets differs. That is why expected returns change when you move from single-zero to double-zero.
Expected Returns: Same Odds Per Bet Type, Different Outcomes Over Time
Players often say, “The odds are the same,” because a straight-up bet still pays 35:1 on both wheels. But the probability of hitting a specific number is not the same.
Straight-up example (single number)
- European roulette: chance to hit a chosen number is 1/37
- American roulette: chance to hit a chosen number is 1/38
That sounds close (and it is close per spin), but over many spins it produces a noticeably different expected result. The same logic applies to every bet: the extra 00 slightly reduces your win probability without increasing your payout, which is exactly how the house edge grows.
Special European Rules That Can Help: en prison and la partage
Many tables that market themselves as European roulette also offer classic rules designed to soften the impact of the zero on even-money bets. These rules do not usually change inside bets like straight-ups or splits, but they can significantly improve the value of outside even-money bets.
La partage
La partage typically applies to even-money bets (Red/Black, Odd/Even, 1–18/19–36). If the ball lands on 0, you lose only half your even-money stake instead of the full amount.
Why it matters: This rule effectively reduces the house edge on those even-money bets on a single-zero wheel from about 2.70% to about 1.35%.
En prison
En prison is another common European rule for even-money bets. If the ball lands on 0, your even-money bet is “imprisoned” for the next spin instead of being lost immediately. On the next spin:
- If your even-money bet wins, you get your stake back (typically without additional profit).
- If it loses again, you lose the stake.
Why it matters: Like la partage, en prison can reduce the house edge on even-money bets to approximately 1.35% under typical rules.
Player benefit: If you enjoy simpler, steadier outside bets, choosing European roulette with en prison or la partage can be one of the most practical “value upgrades” available in roulette.
Wheel Number Sequences: Different Patterns, Same Randomness
Another difference between European roulette and American roulette is the wheel number sequence (the order of numbers around the wheel). The placement of red and black numbers, and how high and low numbers are distributed, is arranged differently between the two wheels.
What this changes for players:
- Visual familiarity: If you are used to one sequence, the other can look “off” at first.
- Dealer calls and wheel tracking myths: Some players like to watch where numbers appear physically on the wheel. While the sequence affects where a pocket sits relative to another, it does not change the underlying house edge created by the presence of 0 vs 0 and 00.
Bottom line: The order around the wheel is a real difference, but the higher-impact difference for value remains the extra 00 pocket in American roulette.
Regional Popularity and Availability: Where You Will Actually See Each Game
Knowing where each variant is most common helps you find the best game quickly, especially when you are comparing casino floors or browsing online lobbies.
European roulette: common in Europe and widely available online
- Dominant across European casinos
- Often the default option at many online casinos
- More likely to offer en prison or la partage (table-by-table)
American roulette: common in the United States
- Frequently found in U.S. land-based casinos
- Recognizable by the 0 and 00 pockets
- May appear online as a dedicated “American” table variant
Player benefit: If you travel or play online, you can use this regional context to quickly locate the version with the better expected return for your style of play.
Practical Implications for Players: Choosing the Better Table Fast
If your goal is to get more entertainment value per dollar (or per unit), the best move is not a complicated system. It is choosing the better variant and rules.
A simple “best table” checklist
- Prefer European roulette over American roulette when you have the choice.
- Look for explicit mention of la partage or en prison if you like even-money bets.
- Confirm the wheel shows only 0 (single-zero), not 0 and 00.
- If you are playing online, check the table info or rules pane for the zero configuration and special rules.
What this means for your session experience
- Longer play time potential: A lower house edge generally means slower expected losses, which can translate to longer sessions at the same bankroll and bet size.
- More efficient “learning curve”: Because bet types and payouts remain consistent, you can learn roulette once and then apply your knowledge to the better-value tables.
- Clearer strategy decisions: The most impactful strategic choice is often game selection (single-zero with favorable rules), not chasing patterns.
Roulette Odds: A Clear Example Using Even-Money Bets
Even-money bets are popular because they are simple and they create frequent wins relative to riskier inside bets. But they are also where the difference between variants becomes very easy to feel.
Even-money bet outcome comparison
| Even-money bet (e.g., Red) | European (single 0) | American (0 and 00) |
|---|---|---|
| Win probability | 18/37 (about 48.65%) | 18/38 (about 47.37%) |
| Lose probability | 19/37 (about 51.35%) | 20/38 (about 52.63%) |
| Typical house edge | About 2.70% | About 5.26% |
| If la partage/en prison applies | House edge can drop to about 1.35% (even-money bets only) | Usually not offered; edge typically stays around 5.26% |
Takeaway: The outside bets may feel similar spin to spin, but over time the single-zero wheel (especially with en prison or la partage) is simply more player-friendly in expected value terms.
Roulette Strategy: What to Do With This Information
A smart roulette strategy starts with respecting what roulette is: a negative-expectation game where no betting pattern can eliminate the house edge. The good news is that you can still make high-impact decisions that improve your experience and maximize value.
Strategy move #1: Optimize game selection first
- Choose European roulette whenever possible.
- Prefer tables offering la partage or en prison if you focus on even-money bets.
Strategy move #2: Match bet choice to your goals
- If you want more frequent hits, outside bets are simpler and swing less.
- If you want higher payouts, inside bets offer bigger wins but with lower hit rates.
Strategy move #3: Use bankroll structure for a better experience
- Pick a unit size that allows a meaningful number of spins (many players aim for dozens to hundreds, depending on pace).
- Decide in advance what “success” looks like for the session (time played, entertainment, or a profit target).
- Keep in mind that variance is normal: short-term winning streaks can happen on any wheel, even the higher-edge one.
Value-focused perspective: You do not need a complicated progression to make a strong decision. Choosing a single-zero wheel, and then adding en prison or la partage when available, is one of the cleanest ways to improve your long-run expected outcome on the bets many players already like to make.
Common Questions Players Ask About European vs American Roulette
Is European roulette “better” than American roulette?
From a math and value standpoint, yes: the single-zero wheel produces a lower house edge (about 2.70% vs roughly 5.26%). That is a substantial difference for a game with identical-looking payouts.
Are the payouts the same?
Typically, yes. Standard roulette payouts are generally the same across both variants. The difference is that the probability of winning each bet changes because the American wheel adds 00.
Do en prison and la partage apply to all bets?
No. These rules are usually limited to even-money outside bets (like Red/Black). They do not typically improve the expected value of inside bets such as straight-up numbers.
Does the wheel number sequence change the house edge?
No. The sequence is different, but the biggest driver of the house edge difference is the number of green zero pockets: 0 vs 00.
Key Takeaways (Player-Friendly and SEO-Ready)
- European roulette has a single 0, while American roulette has both 0 and 00.
- This 0 vs 00 difference creates a much better house edge for European roulette (about 2.70%) versus American roulette (roughly 5.26%).
- Roulette odds per bet type (payout schedule) look the same, but expected returns differ because the wheel has a different number of pockets.
- European tables may offer en prison or la partage, which can further reduce the house advantage on even-money bets (often to about 1.35% on those bets).
- European roulette is dominant across Europe and widely available online, while American roulette is common in U.S. casinos.
- The best practical roulette strategy is often simple: pick the best-value wheel and rules before you place your first chip.
Final Thought: Small Wheel Change, Big Value Difference
Roulette is a game of clean rules and immediate excitement, and that is exactly why the wheel choice matters so much. When the only meaningful change is adding a 00 pocket, and everything else (payouts, bet types, table layout) stays familiar, choosing the single-zero option becomes an easy win for informed players.
When you can, aim for European roulette, prioritize tables with en prison or la partage for even-money play, and enjoy the same classic roulette experience with better underlying value.
