The difference between European and American roulette
Roulette combines chance, familiar betting layouts and meaningful differences between casinos. A wager can cover a single number, a colour, odd or even, or a larger group, yet the wheel’s zero design changes the mathematics behind every choice.
For Australian players, roulette is available at destinations such as Crown Melbourne and The Star Sydney, as well as on Australian-facing online casino platforms. Balances are commonly shown in Australian dollars. In New South Wales and Victoria, meanwhile, pubs and clubs are better known locally for pokies than roulette.
The main divide is simple: a European roulette wheel has one green zero, while an American roulette wheel has two. This difference affects the odds, the house edge and, in some casinos, which special rules apply to even-money wagers.
Core format differences
A European wheel has 37 pockets: the numbers 1 to 36 and a single 0. An American wheel adds a second green pocket, 00, producing 38 pockets. The extra slot is the source of the American game’s higher house edge.
| Feature | European roulette | American roulette |
|---|---|---|
| Pocket count | 37 | 38 |
| House edge | 2.70% | 5.26% |
| Zero pockets | One green 0 | Green 0 and 00 |
| Straight-up payout | 35:1 net | 36:1 net |
| Even-money outcome | 18 wins, 19 losses | 18 wins, 20 losses |
| Special even-money rules | En prison or La Partage may be offered | Usually unavailable |
Although both games use red and black numbers and similar outside-bet options, American roulette gives the bank two ways to capture a losing wager. European roulette exposes only one zero, so a red or black bet faces a 19-pocket loss condition rather than a 20-pocket one.
House edge and expected losses
The house edge is the casino’s built-in mathematical advantage, not a fee charged at the table. On every A$1 wagered, the theoretical loss is about 2.7 cents under European rules and 5.3 cents under American rules. Actual spins vary, but this expectation becomes clearer across thousands of wagers.
Return to player, or RTP, expresses the same idea from the player’s side: approximately 97.30% for European roulette and 94.74% for American roulette. The RTP guide for beginners explains how RTP works beyond roulette, including why advertised percentages do not predict the result of an individual session.
Wheel order and betting layouts
The pockets are not arranged identically. European and American wheels use different number sequences, and each casino betting layout follows its corresponding wheel order. This matters for split, street and corner bets because “neighbours” refer to positions on the wheel rather than simply the order printed across the felt.
The American layout places 0 and 00 at opposite ends, a design strongly associated with Las Vegas casinos. European layouts place the single zero at one end. Online versions retain these sequences, making close inspection useful when comparing the European wheel with its double-zero counterpart.
En prison and la partage
On an even-money bet—red, black, odd, even, high or low—a European-rules zero may trigger En prison or La Partage, depending on the venue. With En prison, the wager stays in play for the next spin. With La Partage, the player receives half the stake back and the other half is lost.
Standard American roulette normally loses the entire even-money wager when zero or 00 appears. A small number of casinos may offer unusual variants, so the posted house rules remain decisive. General coverage such as casino game updates can provide context on regional formats, although the venue’s own rules should take priority.
Playing roulette in Australia
Casino and interactive gambling rules are administered by each state or territory, and the minimum legal age is 18. Australian players should check local regulations, account terms and any venue-specific limits before depositing or exchanging chips for a roulette table.
Land-based roulette can be found at major properties in Melbourne and Sydney, with casinos also operating in several other jurisdictions. The local contrast is striking: social gaming in many Victorian and NSW clubs centres on electronic pokies, while roulette requires a designated table inside a licensed casino. Online stakes are generally displayed in AUD when a service accepts Australian customers, although licensing and availability vary by jurisdiction.
Comparing volatility and session choices
The American format has more pockets and more non-winning outcomes, so losses can cluster more sharply even though a number bet pays one extra unit. Neither wheel is “safer” because of a hot or cold pattern; spin independence means past results do not alter the next probability.
Players comparing formats should distinguish payout, volatility and house edge. A higher advertised return, a familiar layout or the social atmosphere can influence the entertainment value of a session, but it does not erase the underlying edge. If a casino’s rules remain unclear, readers can contact the editors with the game name and jurisdiction.
Bankroll basics for Australian players
A roulette bankroll should be treated as entertainment money, separate from rent, bills and savings. Because wagers can repeat quickly, a fixed session limit and small, consistently sized stakes help keep losses understandable. A player might divide A$100 into twenty A$5 betting units and stop when that allowance is exhausted, rather than chasing a result with additional deposits.
On the maths alone, European roulette preserves more of the theoretical stake over a long run because it has only one zero. American roulette remains a valid choice for its distinct Las Vegas style and payout structure, but its 5.26% house edge means A$100 wagered returns about A$94.74 in the long run, compared with A$97.30 under European rules.