If you’ve ever wondered why two roulette tables that look almost identical can produce very different results over time, the answer is simple: single zero vs double zero. That one extra pocket (the 00) changes the math, shifts the odds, lowers the player’s long-run return, and nearly doubles the casino advantage.
This guide breaks down the real, practical differences between European roulette, French roulette, and American roulette, with an easy house edge comparison, clear RTP explanations, and actionable tips for picking the most player-friendly game whenever you have a choice.
At a glance: the key difference is the wheel (and the math)
European roulette uses a single-zero wheel with numbers 0 to 36, for a total of 37 pockets. American roulette adds a double-zero pocket, 00, for a total of 38 pockets.
Payouts are usually the same across both variants (for example, a straight-up bet still pays 35 to 1), which is exactly why the extra pocket matters: you’re being paid as if the wheel had fewer outcomes than it actually does.
Quick comparison table
| Feature | European Roulette | American Roulette | Why it matters |
|---|---|---|---|
| Wheel pockets | 37 (0–36) | 38 (0–36 plus 00) | More pockets with the same payouts reduces RTP |
| Single zero vs double zero | Single zero (0) | Double zero (00) added | 00 increases house edge on most bets |
| Typical house edge | About 2.70% | About 5.26% | American roulette is roughly double the edge |
| RTP (return to player) | About 97.30% | About 94.74% | Higher RTP generally means better long-run value |
| Common special rules | Sometimes French rules | Usually none | Rules like La Partage can cut the edge on even-money bets |
House edge comparison: why 00 changes everything
The house edge is the casino’s built-in advantage expressed as a percentage of each bet in the long run. It’s not a prediction of short-term results, but it’s extremely useful for comparing games that otherwise feel similar.
European roulette house edge (single zero)
On a European wheel (37 pockets), many standard bets have a house edge of:
House edge = 1 / 37 ≈ 2.7027%
That corresponds to an RTP of:
RTP = 1 − 1/37 ≈ 97.2973%
American roulette house edge (double zero)
On an American wheel (38 pockets), the same style of bets typically have a house edge of:
House edge = 2 / 38 ≈ 5.2632%
That corresponds to an RTP of:
RTP = 1 − 2/38 ≈ 94.7368%
What this means in real terms
The most important takeaway is not the exact decimal; it’s the direction and the scale: American roulette’s edge is about twice as high as European roulette’s on comparable bets.
If you’re value-seeking, that’s a big deal because roulette outcomes are frequent. Even small percentage differences can compound over many spins.
Odds and payouts: mostly the same, but the expected return is not
One of the most confusing things for new and even experienced players is that roulette variants generally keep the same payout table. That creates the impression the game is “the same,” when the odds and expected return are quietly different.
Common roulette bets (and why the edge stays built in)
- Straight-up (one 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
- Dozen / Column (12 numbers): pays 2 to 1
- Even-money bets (Red/Black, Odd/Even, High/Low): pays 1 to 1
Those payouts were designed around a wheel without giving the player a true “fair odds” payoff relative to the actual number of pockets. The extra 00 on American roulette widens that gap further.
RTP explained with simple examples
RTP (return to player) is the percentage of total stakes a game is expected to return over the long run. You can think of it as the flip side of the house edge:
RTP = 1 − house edgeHere are two practical examples showing how the wheel design impacts results on identical bets.
Example 1: $10 on Red (even-money bet)
Assuming standard rules and no special French rules:
- European (single zero): you lose when 0 hits (1 pocket). House edge is about 2.70%.
- American (double zero): you lose when 0 or 00 hits (2 pockets). House edge is about 5.26%.
Over a very large number of spins, the average cost per $10 wager is approximately:
- European: $10 × 2.70% ≈$0.27
- American: $10 × 5.26% ≈$0.53
The spin-by-spin experience can still be volatile, but the long-run expectation clearly favors the single zero wheel.
Example 2: $10 straight-up bet on a single number
Both versions usually pay 35 to 1 (profit) if you hit.
- European hit probability: 1 / 37
- American hit probability: 1 / 38
That may look like a tiny difference, but it’s consistent and measurable. With the payout held constant, the American wheel’s extra pocket reduces the player’s expected return.
French roulette rules that can improve your odds: La Partage and En Prison
If you’re shopping for the best roulette value, European roulette is already a strong step up from American roulette. But some tables go further by offering French rules that make even-money bets significantly more player-friendly.
La Partage: half back on even-money bets when 0 hits
La Partage (often translated as “sharing”) applies to even-money bets such as Red/Black, Odd/Even, and High/Low.
If the ball lands on 0 on a single-zero wheel, instead of losing your entire even-money bet, you get half of it back. Example: bet $10 on Red, 0 hits, you lose $5 (and $5 is returned).
This single rule can reduce the house edge on even-money bets to about:
House edge with La Partage ≈ 1.35%
Which implies an even-money-bet RTP of about:
RTP with La Partage ≈ 98.65%
That’s a meaningful improvement for players who like steady, lower-volatility betting styles.
En Prison: “imprisoned” even-money bets on 0
En Prison (often seen on French roulette layouts) is another rule applied to even-money bets on a single-zero wheel.
When 0 hits, your even-money bet is not immediately lost. Instead, it is “imprisoned” for the next spin. Typically:
- If your bet wins on the next spin, you get your original stake back (often without profit for that cycle).
- If it loses on the next spin, you lose the stake.
Depending on the exact implementation, En Prison generally produces a similar benefit to La Partage on even-money bets, often effectively bringing the edge close to about 1.35% for those bets.
Player-friendly takeaway: A European or French single-zero game with La Partage (or En Prison) can be one of the best mainstream roulette options for value-seeking players, especially if your strategy focuses on even-money bets.
Wheel and layout differences: the numbers aren’t arranged the same
Beyond the extra 00 pocket, European and American roulette wheels use different number sequences around the wheel. The layouts are designed to spread high/low and red/black numbers around, but the exact ordering differs by variant.
What this means in practice:
- The odds are still determined by the number of pockets, not by the order of numbers.
- Bet types and payouts are largely the same, so the house edge comparison remains the key factor.
- If you track wheel results for fun or personal discipline, the different sequences can affect how patterns appear (without changing the underlying probabilities).
For most players, the biggest “layout” difference that matters is simply whether the table includes 0 only, or 0 and 00.
Why European / French tables are often the smarter value choice
If your goal is to maximize enjoyment per dollar (or stretch your bankroll longer), European and French roulette tend to deliver clear advantages.
1) Higher RTP by design
With a single zero, European roulette’s RTP is about 97.30% under standard rules. Compare that to about 94.74% for American roulette. That gap is large in casino terms.
2) Better even-money value with La Partage or En Prison
When you find La Partage or En Prison, you can potentially push even-money bets to around 98.65% RTP. That’s one reason many informed players actively seek French-rule tables.
3) Same familiar bet menu, improved long-run expectation
You don’t have to learn a brand-new game to get better value. In most venues, you can keep making the same inside and outside bets you already know, simply on a more favorable wheel.
Practical tips to choose single-zero roulette (and spot the best rules)
When you’re standing between tables in a casino or scrolling online roulette game options, these checkpoints help you quickly identify the better-value roulette.
Check the wheel: look for 0 only (not 00)
- European / French roulette: 0 present, 00 absent
- American roulette: both 0 and 00 present
Confirm the rules for even-money bets
- Ask or read the table rules for La Partage or En Prison.
- If you prefer Red/Black or Odd/Even style bets, these rules can be a real upgrade in RTP.
Prioritize transparent house edge information
Many casinos (especially online) will list the variant and rules. Use that information to your advantage. A quick house edge comparison before you play is one of the simplest ways to make a smarter choice.
Be careful with “side bets” and specialty versions
Some roulette offerings add optional side bets with much higher house edges than the main game. If your goal is value, treat them as entertainment splurges rather than your default.
Match table limits to your bankroll
Even with better odds, roulette has variance. Choosing a table minimum that fits your budget helps you stay comfortable and consistent. Better value works best when you can actually sustain your preferred betting style for more spins.
European vs American roulette: which should you play?
If you have the option, the best default choice for most value-seeking players is:
- First choice: French roulette with La Partage (or En Prison), especially if you like even-money bets
- Second choice: European roulette (single zero) with standard rules
- Last choice: American roulette (double zero), when it’s the only table available or when you’re playing purely for the experience
This isn’t about guaranteeing wins (roulette can’t do that), but about choosing conditions that improve your long-run RTP and make your bankroll more resilient.
FAQ: single zero vs double zero, odds, and RTP
Is European roulette always better than American roulette?
From a mathematical value standpoint, yes in typical conditions, because the single zero vs double zero difference leads to a lower house edge (about 2.70% vs 5.26%).
Do payouts change between European and American roulette?
Usually no. Most standard bets pay the same across both variants. The difference is that American roulette has an extra losing pocket (00), lowering the player’s expected return for those same payouts.
What does RTP mean in roulette?
RTP is the long-run expected return of your wagers. For standard European roulette, it’s about 97.30%. For standard American roulette, it’s about 94.74%. With La Partage on even-money bets, RTP for those bets can rise to about 98.65%.
Does La Partage apply to all bets?
No.La Partage is typically limited to even-money bets (like Red/Black). Inside bets (like straight-up numbers) usually keep the standard rules.
Bottom line: pick single-zero games for better odds and higher RTP
When roulette choices are on the table, your biggest lever is straightforward: choose single zero vs double zero in your favor. European roulette’s lower house edge and higher RTP make it a strong default, and French rules like La Partage and En Prison can improve even-money bets even further.
If you want a simple decision rule you can use anywhere: look for one zero, ask about La Partage, and let the house edge comparison guide you. Over time, those small-looking percentage differences are exactly what separates an average roulette session from a smarter, longer-lasting one.
