Roulette has remained one of the most recognised games found in both land-based and online casinos licensed in the UK. It’s a game many people have seen before—whether on a casino floor or as part of a live online offering—with its spinning wheel and numbered layout. While the look of the game is widely recognised, the details of how the wheel is structured, including the numbers it contains, are often less well known.
In this guide, we’ll take a closer look at the different types of roulette wheels, how many pockets each one includes, and how these variations could potentially influence the way the game is played.
European Roulette
European Roulette is commonly played at both physical and online casinos that operate under UK licences. The wheel is divided into 37 numbered pockets, with numbers ranging from 0 to 36. These numbers alternate between red and black for numbers 1 through 36, while the single zero (0) is coloured green.
The single zero is the key feature that separates this version from others. Its presence introduces a house edge that applies to all bets except those that account for the zero pocket in specific ways. This version of the game is often chosen by players who prefer a layout that offers a single zero and no additional zero pocket. All numbers, including zero, are placed in a non-sequential, specific pattern around the wheel, a design choice that balances opposite sides of the wheel.
American Roulette
American Roulette is another established version of the game and can be found on some UK-licensed casino sites, although it is less commonly featured than the European format. One key distinction lies in the total number of pockets, which is 38. This includes the numbers 1 to 36, a single zero (0), and a double zero (00). Like the European version, numbers 1 to 36 are coloured red and black in alternating order, while both zero and double zero pockets are coloured green.
The addition of the double zero creates an extra outcome, which has implications for the odds associated with some bet types. As with other formats, the numbers on the wheel are arranged in a specific, non-linear sequence. The layout also affects the table, with some betting areas adjusted to account for the additional pocket.
French Roulette
French Roulette shares many similarities with the European version in terms of the wheel itself. It also features 37 pockets, ranging from 0 to 36, with one single zero pocket. However, the table rules set this version apart.
Certain rules, such as ‘La Partage’ or ‘En Prison’, may be applied to even-money bets. These rules allow players to retain part of their stake or delay its outcome when the ball lands on zero. These rules vary between tables and providers, and not every version will include them. The layout of the wheel is identical to that of European Roulette, but the betting table includes French terminology, and chip placement may differ depending on the platform or venue.
What Is the Highest Number on a Roulette Wheel?
Across all traditional roulette formats—European, American, and French—the highest number that appears on the wheel is 36. Numbers begin at 1 and continue sequentially up to 36. These are distributed in a specific order around the wheel to avoid clustering similar values and colours together.
The number 36 is coloured red, while the numbers alternate red and black throughout the wheel. Green pockets are reserved for zero and double zero (where applicable). While the layout of the table may differ depending on the version, the presence of the number 36 is consistent.
Although the number 36 is the highest, it’s important to distinguish between the highest number and the total number of pockets. For example, American Roulette contains more pockets due to the additional zero, but no numbers exceed 36.
What Is the Most Common Number in Roulette?
Roulette is structured to provide each number with an equal chance of being selected. Regardless of which version you play, the outcome of each spin is random and independent of any previous results. There is no built-in pattern or trend that would cause one number to occur more frequently than another over a long period.
Each spin uses a randomised mechanism, either physically or digitally (depending on the format), to determine where the ball lands. In regulated online environments, this process is overseen by Random Number Generators (RNGs) or certified live dealer hardware, both of which are tested and verified for fairness by independent bodies.
Because of this, there is no number that is statistically more likely to appear than others over time. Any variation in frequency observed across a small number of spins is part of natural randomness and does not indicate a pattern. It is not possible to predict which number will appear next, and past outcomes do not influence future results. As always, it’s important to gamble responsibly and within your means.
Choosing a UK-Licensed Online Roulette Site
If you’re looking to try your hand at online roulette, selecting the right casino is an important first step. Different online casinos can offer a varied selection of roulette games, each with its own twists and rules. Some may host live dealer games, where real-life dealers manage the action, adding a more authentic feel. Others might focus on unique digital variants that add fresh rules to the classic experience.
It’s also wise to consider the licensing and safety of the platform. Make sure the casino you choose is regulated by the UK Gambling Commission (UKGC). This ensures fair play and trustworthy practices, giving you peace of mind while you explore roulette options.
To help you in this decision, here at Chief Gambler we’ve compiled a list of top online casino sites. This guide covers essential aspects like game variety, customer service, and secure payment options. Check out our recommendations to find a suitable spot to enjoy your roulette experience.
Roulette Numbers: FAQs
What Are the Odds for a Single Number Bet?
A single number bet, also referred to as a straight-up bet, involves placing a chip on just one number. In European and French Roulette, which have 37 total pockets, the odds of a single number being selected are 1 in 37. In American Roulette, which has 38 pockets, the odds are 1 in 38. The typical payout for a successful straight-up bet remains the same across versions—35 to 1.
These odds are calculated based on the total number of possible outcomes, with each number representing one possible outcome on the wheel.
What Colour Is the Number Zero?
The zero pocket is green on all roulette wheels, including those used in European, American, and French variants. These green pockets are visually distinct and easy to identify on both physical and digital tables.
