Roulette looks simple: pick a number or a color, watch the wheel spin, and enjoy the suspense. But the type of roulette wheel you play can make a bigger difference to your long-term results than most “strategies” ever will.
The headline comparison is straightforward: European roulette uses a single-zero wheel, while American roulette uses a double-zero wheel. That one extra pocket (the 00) materially changes the RTP (return to player), the house edge, and the expected value of both inside and outside bets.
Single zero vs double zero: the core difference
Both versions pay using essentially the same payout schedule (for example, a straight-up number pays 35:1). The key difference is how many pockets you’re competing against.
- European roulette: 37 pockets (numbers 0–36).
- American roulette: 38 pockets (numbers 0, 00, plus 1–36).
Because payouts typically do not improve to compensate for the extra pocket, the American wheel generally produces a lower RTP and a higher house edge.
RTP and house edge: the numbers that drive everything
Two terms matter most when comparing roulette games for value:
- RTP (Return to Player): the average percentage of your total wager that the game returns over the long run.
- House edge: the casino’s long-run advantage, calculated as 100% minus RTP.
On standard rules, the widely cited baseline figures are:
- European roulette RTP: about 97.30% (house edge roughly 2.70%).
- American roulette RTP: about 94.74% (house edge roughly 5.26%).
This difference is not a rounding error. Over time, it’s the difference between a relatively “player-friendly” classic table and a game that costs you about nearly twice as much in expected losses for the same amount wagered.
European vs American roulette at a glance
| Feature | European Roulette | American Roulette |
|---|---|---|
| Wheel pockets | 37 (0–36) | 38 (0, 00, 1–36) |
| Zero pockets | Single zero (0) | Double zero (0 and 00) |
| Typical RTP | ~ 97.30% | ~ 94.74% |
| Typical house edge | ~ 2.70% | ~ 5.26% |
| Best for value-focused players | Yes (better expected value) | Less favorable (higher cost of play) |
How the extra 00 changes your odds (and your expected value)
Roulette payouts are largely fixed, so when you add a pocket without changing payouts, you dilute every bet’s probability of winning.
Here’s the simple idea:
- On a single-zero wheel, most bets are priced as if there are 36 “non-house” outcomes plus the one zero that benefits the house.
- On a double-zero wheel, you effectively have two house-favoring outcomes (0 and 00) without improved payouts.
That is why the American wheel typically carries a higher house edge on standard bets.
Outside bets: even money, but not even odds
Outside bets are popular because they feel steady and approachable:
- Red / Black
- Odd / Even
- High / Low (19–36 / 1–18)
They pay 1:1, which is why many players gravitate to them for longer sessions and smoother bankroll swings. But the presence of 0 (and 00 on American) breaks the “near 50/50” intuition.
Expected value example (even-money bets)
Imagine you wager $10 on red repeatedly.
- On European roulette, the typical house edge of about 2.70% implies an expected loss of roughly $0.27 per $10 wagered over the long run.
- On American roulette, the typical house edge of about 5.26% implies an expected loss of roughly $0.53 per $10 wagered over the long run.
Over many spins, that difference adds up, especially for players who enjoy frequent, smaller outside wagers.
Inside bets: higher variance, same house edge (within a given wheel)
Inside bets cover specific numbers or small groups of numbers on the layout:
- Straight-up (one 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)
Many players assume inside bets are “worse” because they hit less often. The more accurate way to think about it is:
- Inside bets are higher variance: you’ll see longer losing streaks, but bigger wins when you connect.
- House edge is primarily determined by the wheel (single zero vs double zero) and the rules, not by whether the bet is inside or outside.
So if you prefer inside bets for excitement, choosing a single-zero wheel still improves your expected value compared to a double-zero wheel.
French rules: how La Partage and en prison can improve the deal
If you see “French roulette” or “French rules,” it’s often a sign of a better-value table for certain bets.
French roulette typically uses a European-style single-zero layout and may include special rules that apply to even-money bets (red/black, odd/even, high/low):
- La Partage: if the ball lands on 0, you lose only half of your even-money bet (the other half is returned).
- En prison: if the ball lands on 0, your even-money bet is “imprisoned” for the next spin. If your bet wins on that next spin, you typically recover your stake (rather than receiving a full win). If it loses, you lose the stake.
Both rules have a similar effect: they can reduce the house edge on even-money bets from about 2.70% to roughly 1.35%. That is a meaningful upgrade for players who like steady outside wagering and longer sessions.
Why this matters in practice
When you combine:
- single zero vs double zero, and
- French rules that soften the impact of the zero,
you get a roulette experience that is often more bankroll-efficient, especially for players placing many even-money bets.
Which roulette should you choose?
If your goal is to get more entertainment per dollar and better long-term value, these priorities keep it simple:
1) Choose a single-zero wheel when available
All else equal, European roulette generally offers a better RTP and a lower house edge than American roulette because it removes the 00.
2) Prefer French rules for even-money bets
If you enjoy outside bets (red/black, odd/even, high/low), a table with La Partage or en prison can significantly improve your expected value by cutting the effective house edge on those bets to around 1.35%.
3) Pick bet types that match your session style
- Outside bets can support longer, smoother sessions with smaller swings.
- Inside bets deliver bigger spikes of excitement but with more volatility.
Neither category magically “beats” the wheel, but matching variance to your comfort level can make the experience more enjoyable and sustainable.
Bankroll management tips that actually help
Roulette is a negative-expected-value game in the long run, which means smart bankroll habits are one of the best ways to improve your experience whether you play roulette or online blackjack.
- Set a session budget and treat it as a fixed entertainment cost.
- Use unit sizing: choose a base unit (for example, 1% to 2% of your session bankroll) to slow down swings.
- Decide win and loss limits: a clear stopping point can protect a good run and contain a cold streak.
- Avoid chasing losses: increasing stakes to “get even” can accelerate bankroll depletion, especially on higher-edge tables like double-zero.
These steps won’t change the house edge, but they can meaningfully improve how long your bankroll lasts and how enjoyable the session feels.
Avoid “guaranteed win” systems: what to know
Many roulette systems promise consistency or “inevitable” profits by changing bet size after wins or losses. The reality is simpler:
- Betting systems do not change the RTP of the wheel.
- They mainly change variance and the way wins and losses are distributed over time.
- Progression systems can create the illusion of control until a long streak (which is normal in probability) forces very large bets or hits table limits.
A genuinely better approach is choosing the best rules available (single zero, French rules when possible), then playing within a plan that fits your bankroll.
Quick FAQ: European roulette vs American roulette
Is European roulette better than American roulette?
From a value standpoint, yes: European roulette generally has a higher RTP (about 97.30%) and a lower house edge (about 2.70%) than American roulette (about 94.74% RTP and 5.26% house edge) because of single zero vs double zero.
Do inside bets have a different house edge than outside bets?
On standard roulette, the house edge is largely driven by the wheel (single zero vs double zero) and rules, not by whether the wager is inside or outside. Inside bets usually feel “riskier” due to higher variance, not necessarily a different house edge.
What are French rules in roulette?
French rules typically refer to La Partage or en prison on a single-zero wheel. These rules can reduce the house edge on even-money bets to around 1.35% by softening the impact of a zero result.
Bottom line: the best roulette choice for better odds
If you want the most favorable roulette experience available at standard tables, focus on what truly moves the needle:
- Prioritize single zero vs double zero: single-zero (European) generally wins on RTP and house edge.
- Look for French rules like La Partage or en prison if you play even-money bets.
- Use bankroll management to stay in control and extend your playtime.
- Skip systems that claim guaranteed wins and instead optimize the rules and game conditions you choose.
Choose the right wheel and rules first, then let your bet selection reflect the kind of session you want. Over time, that combination delivers the best balance of entertainment, clarity, and value.
