European vs American Roulette: One Pocket, Twice the Cost

What is the difference between European and American roulette?

Put the two wheels side by side and almost everything matches. Numbers 1 to 36 in red and black, alternating around the rim. The same three-column betting grid on the cloth. The same dealer procedure, the same countdown, the same call of no more bets. A straight-up number pays 35 to 1 on both.

The American wheel carries one extra pocket, a green 00 alongside the green 0. Thirty-eight pockets instead of thirty-seven. Nothing else was changed to compensate, and that is the whole story of this comparison.

It sounds trivial. It is not. A single additional losing outcome, spread across a layout whose payouts were never adjusted for it, lifts the cost of every bet on the table by roughly ninety-five per cent. If you take one thing from the roulette guide, take this.

The payouts are identical, which is exactly why the edge is not

Every payout in the middle column is calibrated for a thirty-six pocket wheel. Multiply the numbers covered by the payout plus one and the answer is thirty-six in all cases. The wheel supplies more pockets than that, and the surplus is the house edge.

The arithmetic takes two lines and settles the argument

Cover a European wheel completely. One ringgit on each of the thirty-seven numbers costs RM37. One of them wins and returns RM36, being the stake plus thirty-five. You are down RM1 on RM37 staked, and European roulette therefore carries a house edge of 2.70%.

Now cover an American wheel. One ringgit on each of the thirty-eight numbers costs RM38, the winner still returns only RM36, and you are down RM2 on RM38. That is 5.26% for American roulette.

The same result appears on any bet you care to test. Back red on a double zero wheel and you win 18 times in 38 rather than 18 in 37. Over 38 spins of RM1 you collect RM18 and lose RM20, a shortfall of RM2 on RM38 of turnover. The layout is priced as though the greens were not there.

Nothing in your play produces a swing of that size. No staking progression does either, as the roulette strategy page demonstrates with worked figures. This is the cheapest improvement available in the game and it is made in the lobby, before a chip moves.

French rules are the third option and they are cheaper than either

A French table uses the single zero wheel and adds a rule for what happens to even-money bets when the green pocket lands. Under La Partage half of the losing stake is returned at once. Under En Prison the stake is held for one further spin and released, without profit, if that spin wins.

Either rule halves the damage the zero does to red, black, odd, even, high and low. Over thirty-seven spins of RM1 on red, eighteen wins pay RM18, eighteen losses cost RM18, and the zero costs fifty sen instead of a ringgit. That is RM0.50 lost on RM37 staked, or 1.35%.

The rule applies only to those six bets. Inside bets, columns and dozens still lose in full to a green pocket at every table in the world. Tables carrying it usually declare it in the game information panel rather than in the lobby tile, so the panel is where to look. Full mechanics are on the roulette rules page.

Check the head of the betting grid before your first chip goes down

Identifying the wheel takes a moment and there are four reliable tells.

• The betting grid. One green box above the numbers means a single zero wheel. Two green boxes, marked 0 and 00, means American.
• The five-number strip. If the layout offers a bet across 0, 00, 1, 2 and 3, you are on an American table. That bet cannot exist on a European one.
• The game information panel. It names the variant and lists the rule set, including whether La Partage or En Prison applies.
• The results board. Green appearing at roughly one spin in nineteen rather than one in thirty-seven is a double zero wheel showing itself.

Labels vary between studios. European roulette, single zero roulette, French roulette and auto roulette are usually the thirty-seven pocket wheel. American roulette, double zero roulette and occasionally Vegas roulette are the thirty-eight. Where a name is ambiguous, count the green boxes.

If you do end up on an American wheel, one bet is worse than the rest

Every wager on a double zero layout costs 5.26%, with a single exception, and the exception is worse. The five-number bet covering 0, 00, 1, 2 and 3 pays 6 to 1. Five numbers at 6 to 1 returns thirty-five units where the structure demands thirty-six, and the result is a house edge of 7.89%.

Stake RM38 on it across thirty-eight spins and you expect five wins returning RM7 each, thirty-five units in, against thirty-eight staked. It is the only bet in roulette priced below the table it sits on, and it has no European equivalent.

The American wheel survives because nothing ever forced it to change

The obvious question is why a more expensive version of the same game still exists at all. The answer is chronology rather than design. The double zero wheel is the older of the two, and it reached North America before the single zero wheel had been invented.

That invention was a commercial move. In 1843 the Blanc brothers opened at Bad Homburg with the zero removed from an otherwise standard wheel, purely to undercut the rival houses, and the cheaper game took the trade. The idea moved with the family to Monte Carlo and spread across Europe from there. By the time it might have crossed the Atlantic, the American double zero layout was already entrenched in New Orleans and on the riverboats, and there was no competitive pressure to abandon it.

Nothing about the American version compensates the player for the extra pocket. There is no higher straight-up payout, no rebate on the greens and no rule equivalent to La Partage. What it does have is a distinctive rim sequence, with consecutive numbers such as 1 and 2 facing each other across the hub, which the roulette wheel numbers page sets out in full. That is a point of interest, not a compensation.

In a Malaysian live lobby the single zero wheel is the default across the studio floors, so the American table is usually something you have to select deliberately. Selecting it deliberately is the part worth avoiding.

The verdict is one line, and it does not require any qualification

Play the single zero wheel. Play a French-rules table if the lobby offers one and you are betting even money, which drops the cost to 1.35%. Treat the American wheel as a curiosity rather than a choice, and if you are ever seated at one, leave the five-number strip alone.

Beyond the wheel, the levers are turnover and time. Expected loss is what you stake multiplied by the edge, so a slower table at a smaller stake costs less per hour by exactly the proportion you would expect. Live tables at U88 start from RM3, which makes a long low-stake session on a single zero wheel entirely practical, and the roulette wheel numbers page covers how the two rim sequences differ once you have chosen.