If you’ve ever scanned a casino floor or browsed a live dealer lobby, you’ve likely seen both European roulette and American roulette. At first glance, they look nearly identical: same spinning wheel, same iconic layout, and the same tempting payouts. But one small detail changes everything for your long-term results: single zero versus double zero.
That extra pocket (the 00) is the biggest reason American roulette usually costs more to play over time, even though the bet types and payout ratios are the same. And if you come across French roulette rules like en prison or la partage, you may find even better value on certain bets without changing how the game feels.
This guide breaks down the real-world differences, the math behind the house edge, and the practical takeaways for choosing the best roulette version in both online vs land-based casinos.
The Core Difference: Wheel Layout (37 vs 38 Pockets)
The key structural difference between European and American roulette is the number of pockets on the wheel:
- European roulette (and most French roulette wheels) have 37 pockets: numbers 1 to 36 plus a single 0.
- American roulette has 38 pockets: numbers 1 to 36 plus 0 and 00.
Everything else you experience (chips, betting grid, pace, and the thrill of the spin) is built on top of that foundation. But that one additional pocket has a measurable impact on your odds and bankroll performance.
European Roulette vs American Roulette: A Quick Comparison Table
| Feature | European Roulette | American Roulette |
|---|---|---|
| Wheel pockets | 37 (1–36 +0) | 38 (1–36 +0+00) |
| Zero style | Single zero | Double zero |
| Typical house edge | About 2.7% | About 5.26% |
| Bet types / payouts | Same standard roulette bets | Same standard roulette bets |
| French rules available | Sometimes: en prison/la partage (even-money bets) | Typically not included |
| Volatility (typical feel) | Lower than American (all else equal) | Higher variance due to extra losing pocket |
Why the House Edge Changes: The Math Behind Single Zero vs Double Zero
Roulette payouts are largely based on a 36-number game (for example, a straight-up bet pays 35 to 1). The zeros (and double zero) are what tilt the math in the casino’s favor.
European roulette house edge (single zero)
On a European wheel, you have 37 equally likely outcomes. Consider a simple even-money bet such as Red/Black:
- You win if the ball lands on your color: 18 outcomes
- You lose if it lands on the opposite color: 18 outcomes
- You also lose if it lands on 0: 1 outcome
Your probability of losing includes that extra zero pocket. Over time, this produces a house edge of about 2.70% on standard European roulette rules.
American roulette house edge (double zero)
On an American wheel, there are 38 outcomes. The even-money bet now has two zero-type outcomes that cause a loss:
- Lose on 0
- Lose on 00
That additional double zero increases the casino advantage to about 5.26%, nearly doubling the cost of play compared with a single-zero wheel.
From a player perspective, this is great news in one respect: you can improve your long-term value simply by choosing the right version of the same game.
Same Bet Types, Same Payouts, Different Value
One of the most important (and sometimes surprising) truths is that European roulette and American roulette usually offer the same bet types with the same payout ratios. Examples include:
- Straight up (single number): pays 35 to 1
- Split (two numbers): pays 17 to 1
- Street (three numbers): pays 11 to 1
- Corner (four numbers): pays 8 to 1
- Six line (six numbers): pays 5 to 1
- Dozen (12 numbers): pays 2 to 1
- Column (12 numbers): pays 2 to 1
- Even-money bets (Red/Black, Odd/Even, High/Low): pays 1 to 1
Because payouts don’t increase to “compensate” for the extra 00 pocket, American roulette is mathematically less favorable. Put simply: the game charges you more (in expected value) for the same payouts.
French Roulette Rules: En Prison and La Partage (A Player-Friendly Boost)
When people say “European roulette is better,” they often mean two things:
- A single zero wheel (already lower house edge than double zero).
- Optionally, French roulette rules that reduce the cost of certain bets even further.
French tables may apply one of these rules to even-money bets (like Red/Black):
La partage
La partage (“the sharing”) typically means that if the ball lands on 0 and you made an even-money bet, you lose only half your stake instead of the full amount.
This effectively reduces the house edge on even-money bets to about 1.35% (roughly half of standard European roulette), while still keeping gameplay simple.
En prison
En prison (“in prison”) is a slightly different approach. If you place an even-money bet and the ball lands on 0, your bet is “imprisoned” for the next spin rather than lost immediately. On the next spin, one of the common outcomes is:
- If your bet wins next spin, you get your stake back (usually without profit).
- If your bet loses next spin, you lose your stake.
Like la partage, this rule improves the value of even-money bets and is a strong reason many players actively seek out French or European tables when available.
Important note: these rules don’t usually change the payout table. They simply adjust what happens when the ball lands on zero for even-money bets, which is exactly where the house edge lives.
The Historical Reason the US Added 00 (and Why It Still Matters)
The presence of 00 in American roulette is widely understood as a historical choice that increased the casino’s advantage. By adding the double zero, casinos created a wheel with an extra losing outcome (from the player’s point of view) while keeping payouts consistent with the traditional 36-number structure.
In practical terms, that historical decision is still shaping player experience today:
- Higher house edge means more bankroll “friction” over long sessions.
- The game becomes more profitable for the house without looking dramatically different.
- Players who don’t notice the wheel type may unknowingly choose worse odds.
The upside of this history is that modern players can use it to their advantage: once you know what to look for, you can make a smarter game selection in seconds.
Practical Takeaways: Which Version Should You Choose?
Choosing between European roulette and American roulette isn’t about changing how you play roulette. It’s about choosing the conditions that give you the best value for the same entertainment.
Choose European roulette for better odds and smoother bankroll swings
- Lower house edge (about 2.7%) compared to American roulette
- Typically lower volatility than double-zero games, because there’s one fewer “instant loss” pocket
- If you find en prison or la partage, even-money bets can become even more efficient
This is especially valuable if you like longer sessions, smaller bankrolls, or a steadier pace where your results are less affected by that extra double-zero outcome, or if you prefer to play blackjack.
Choose American roulette if you prefer higher variance and classic US casino style
- Double zero increases variance, which can make sessions feel swingier
- Higher casino advantage (about 5.26%) means a bigger long-term profit margin for the house
- Common in many US venues and some online lobbies, so it may be the most available option in certain contexts
If you enjoy faster-changing bankroll dynamics (bigger ups and downs) and you’re comfortable with the added cost of play, American roulette can still be an exciting choice. The key is making that choice intentionally.
European vs American Roulette in Online vs Land-Based Casinos
The best roulette choice often depends on where you’re playing. The good news is that both online vs land-based casinos now commonly label roulette types, making it easier to pick the version you want.
In online casinos
- You can often filter games by name (for example, European roulette or American roulette).
- Many live dealer studios offer single-zero tables, and some offer French-rule variants with en prison or la partage.
- Because switching tables is easy, online play rewards informed selection: it takes seconds to move to a single zero table if one is available.
Tip: Always look for the wheel graphic or game description that clearly shows whether it has 0 only, or 0 and 00. That one glance can protect your expected value.
In land-based casinos
- US properties commonly spread American roulette, though some venues offer single-zero versions.
- European venues more commonly offer European roulette or French-style games.
- Table signage and the betting layout can help you identify the version quickly. A layout with a 00 space indicates American roulette.
Because you can’t always “filter” in person, a smart approach is to walk the floor and actively seek out a single zero wheel. Over many sessions, this simple habit can meaningfully improve your long-run results.
House Edge in Plain English: What the Percentages Mean for Players
The phrase house edge can sound abstract, so here’s a practical way to think about it.
House edge is the casino’s average advantage over a very large number of bets, expressed as a percentage of your total money wagered (not your bankroll). It does not mean you lose that percentage every session, but it does describe the long-run “cost of play.”
Why the difference between 2.7% and 5.26% is a big deal
- In European roulette, the game is engineered to keep more value on the player side compared to American roulette.
- In American roulette, the extra double zero pushes more outcomes into the losing column without increasing payouts.
That’s why roulette guides so consistently recommend: choose single zero whenever you can.
Volatility and Variance: Why American Roulette Feels “Swingier”
Roulette is a game of independent spins, but the wheel design changes how often certain frustrating outcomes occur. Adding 00 doesn’t just raise the house edge; it also increases the frequency of “nothing hits” outcomes for many popular bets.
In practice, this often means:
- Even-money bettors (Red/Black, Odd/Even) may experience slightly longer losing stretches over time in American roulette, simply because there’s an extra zero-type pocket that causes a loss.
- Players can see more pronounced up-and-down bankroll movement, which is what many people mean by higher variance.
By contrast, European roulette tends to deliver a smoother ride under similar betting patterns, and French rules like en prison or la partage can smooth it even further for even-money bets.
How to Identify European vs American Roulette in Seconds
Whether you’re playing live, digital, or in a casino, you can quickly spot the difference using a simple checklist:
- Check the wheel pockets: if you see 00, it’s American roulette.
- Check the table layout: American layouts include a 00 box alongside the 0.
- Read the rules panel: many games explicitly state single zero or double zero, and French variants mention en prison or la partage.
This small habit is one of the most player-friendly “strategies” available in roulette, because it improves the math without changing your style of play.
Best-Value Roulette Choices (Based on the Math)
If your goal is to maximize entertainment value per dollar (or per chip), here’s a clear ranking based on typical rules:
- French roulette with la partage or en prison (best value for even-money bets)
- European roulette with a single zero
- American roulette with double zero
All three can be fun, fast, and easy to learn. The difference is simply how much advantage is built into the wheel and rules.
Final Thoughts: Get More Out of Roulette by Choosing the Right Wheel
The smartest roulette decision often happens before you place your first bet. By choosing European roulette (ideally with single zero rules, and even better with en prison or la partage when available), you’re giving yourself better odds, a lower house edge, and typically lower volatility.
American roulette, with its double zero, is a classic for a reason: it’s widely available and delivers a higher-variance experience. But it also reflects a historical design choice to increase casino advantage and profitability.
In both online vs land-based casinos, the takeaway is refreshingly simple: when you have a choice, pick the single zero game. You’ll be playing the same roulette you love, just on terms that are more favorable to you.
Quick FAQ
Is European roulette always better than American roulette?
From an odds perspective, yes: European roulette typically has a lower house edge (about 2.7%) than American roulette (about 5.26%), mainly due to single zero versus double zero.
Do European and American roulette have the same payouts?
In standard rules, yes. The bet types and payout ratios are usually the same, which is why the wheel design (37 vs 38 pockets) matters so much.
What do en prison and la partage mean?
They are French-style rules applied to even-money bets.La partage typically returns half your stake when the ball lands on 0.En prison typically “holds” your bet for the next spin, giving you a chance to recover it under defined conditions.
How can I tell if an online roulette game is single zero or double zero?
Look for 0 only (single zero) or 0 and 00 (double zero) on the wheel graphic, game title, or rules panel.
