What makes the American roulette wheel different from the European wheel?
At first glance, American and European roulette look almost identical. Both have numbers from 1 to 36, red and black pockets, a green zero, and the familiar betting layout. So, if you have played one version, it is easy to assume that the other works in exactly the same way.
There is, however, one small detail that changes the mathematics of the entire game: the American roulette wheel has both 0 and 00, while the European wheel has only one 0.
That extra pocket may not look important when you are watching the wheel spin, but it changes the number of possible outcomes and the house edge. Understanding this difference can make it much easier to recognize what you are actually playing, whether you are at a physical table or exploring roulette online.
The Easiest Way to Spot the Difference
You do not need to memorize complicated rules to identify the two wheels. Just look at the green pockets.
A standard European roulette wheel contains 37 pockets:
- Numbers 1 through 36
- One green 0
An American roulette wheel contains 38 pockets:
- Numbers 1 through 36
- One green 0
- One green 00
The numbers from 1 to 36 are still divided between red and black. The major visual clue is therefore the second green pocket marked 00.
This is the foundation of the entire American roulette vs European roulette comparison.
Why Does the Extra 00 Matter?
The interesting part is that the payout for most common bets does not increase when the second zero is added.
For example, a straight-up bet on a single number normally pays 35:1 in both versions. But the probability of that number appearing is different because the wheels contain a different number of pockets.
On a European wheel, a particular number has a 1-in-37 chance of appearing.
On an American wheel, that same number has a 1-in-38 chance.
The difference comes entirely from the additional 00 pocket. The payout remains the same, but there is one more possible result that does not help a standard number bet.
That is why the standard house edge is approximately 2.70% for European roulette and 5.26% for American roulette.
American Roulette Wheel: What Is Actually on It?
Imagine looking directly down at an American roulette wheel.
You will see 38 pockets arranged around the wheel. Eighteen numbered pockets are red, eighteen are black, and the two remaining pockets are green: 0 and 00.
The 0 and 00 are particularly important because they are not red or black. So, for an even-money bet such as red or black, either green pocket causes the bet to lose under standard rules.
This gives American roulette its double-zero structure.
The betting layout also contains familiar options such as:
- Straight-up bets
- Split bets
- Street bets
- Corner bets
- Six-line bets
- Red or black
- Odd or even
- 1–18 or 19–36
- Dozens
- Columns
Most of these familiar betting options are also found in European roulette. The major difference is the wheel itself and the mathematical effect created by the additional 00.
European Roulette Wheel: What Changes?
The European version removes the 00 completely.
Its wheel contains 37 pockets: numbers 1 through 36 and one green 0.
That means there is one fewer outcome compared with the American version. For standard bets, this produces a lower house edge of approximately 2.70%.
The basic betting experience remains familiar. You can still choose individual numbers, combinations of numbers, colors, parity bets, dozens and columns.
So, when people compare American and European roulette, they are not comparing two completely different casino games. They are comparing two versions of the same basic roulette concept with a crucial difference in wheel design.
A Simple Numbers Comparison
| Feature | American Roulette | European Roulette |
| Total pockets | 38 | 37 |
| Green pockets | 0 and 00 | 0 |
| Numbered pockets | 1–36 | 1–36 |
| Standard house edge | About 5.26% | About 2.70% |
| Straight-up payout | Usually 35:1 | Usually 35:1 |
| American-only five-number bet | Available | Not available |
The figures above show why the second zero is more than just a visual difference. It changes the probability of individual outcomes while the standard payout remains the same.
The American-Only Five-Number Bet
There is another feature worth knowing if you are learning about the American roulette wheel.
Some American roulette tables offer a five-number wager covering:
0, 00, 1, 2 and 3
It is sometimes called the five-number bet, basket bet, or top-line bet.
This bet exists because the American wheel has both zero pockets. It does not have a direct equivalent on a standard European roulette layout.
The mathematical house edge on this five-number combination is approximately 7.89%, which is higher than the standard American roulette house edge.
For someone learning the game, this is a useful detail because the name of a bet does not tell you whether its mathematical characteristics are the same as another roulette wager.
What Does This Mean When Playing Roulette Online?
The difference becomes especially important with roulette online, because digital casino menus can contain several roulette variants side by side.
A game may be labelled:
- American Roulette
- European Roulette
- Single Zero Roulette
- Double Zero Roulette
- Live American Roulette
- Live European Roulette
The title can tell you which version you are looking at, but it is still worth checking the game information before placing a wager.
For example, players exploring roulette at an LTC Casino may find several roulette variants that look almost identical on screen. However, the number of pockets and the presence of 00 can make a significant difference to the game’s mathematics.
Look for the number of pockets, the presence of 00, the available bets and the stated rules. This is particularly useful when a website offers multiple roulette tables that look almost identical. A quick check of the wheel can tell you whether you are dealing with a single-zero or double-zero game.
Why the Wheel Matters More Than It Looks
One of the interesting things about roulette is that a tiny design change can have a significant mathematical effect.
Suppose you choose a red bet.
On a European wheel, there are 18 red pockets, 18 black pockets and one green 0.
On an American wheel, there are still 18 red and 18 black pockets, but now there are two green pockets.
So the American version has two green outcomes that work against standard red/black bets instead of one.
That is why the extra 00 is not simply another number printed on the wheel. It changes the probability structure of the game.
American Roulette vs European Roulette: Which Details Should Beginners Remember?
You do not need to remember every betting combination to understand the main distinction.
Think of it this way:
European roulette = one zero.
American roulette = two zeros.
From there, everything else becomes easier to understand.
The European wheel has 37 possible outcomes, while the American wheel has 38. Because the common payouts generally remain the same, the additional 00 increases the mathematical house edge.
There can also be rule variations at particular tables, so the published game rules should always be checked rather than assuming every roulette table operates identically.
A Closer Look at the Wheel Before You Play
If you are new to roulette, take a few seconds to look at the wheel before placing your first bet.
If you see 0 and 00, you are looking at an American-style wheel.
If you see only 0, it is a European-style wheel.
That simple observation can tell you an important part of the game’s mathematical structure before you even place a chip.
It is also a useful habit when browsing roulette online. Instead of choosing a game simply because the graphics or table design look familiar, check the wheel format and game rules first.
Final Thoughts
The American roulette wheel and European roulette wheel share most of their basic features, but their difference is concentrated in one very important place.
American roulette has 38 pockets, including 0 and 00. European roulette has 37 pockets, with only one 0. That extra green pocket changes the probability of outcomes and raises the standard house edge from about 2.70% to about 5.26%.
So, when looking at American roulette vs European roulette, do not focus only on the table layout or familiar betting options. Start with the wheel itself.
Disclaimer: This article is for informational purposes only. Roulette involves financial risk and may be subject to age and legal restrictions. Play responsibly and only where permitted by law.