Find out everything you need to know about how to play roulette. Our team of casino experts breaks down wheel layouts, the house edge, inside and outside bets, and the true mathematical probabilities behind every spin to help you make informed choices at the table.
How does roulette work?
Roulette is a classic casino game centered around a spinning wheel and a small white ball. A casino dealer (or automated system) spins the wheel in one direction and releases the ball in the opposite direction. Players place bets on a dedicated table layout, attempting to predict where the ball will eventually come to rest. You can bet on specific numbers, groupings of numbers, colors, or whether the winning number will be odd or even.
Wheel Layouts: European vs. American Roulette
Before placing a chip on the table, it is crucial to understand which version of roulette you are playing, as the wheel layout directly impacts your mathematical chances of winning.
- European Roulette: This is the standard version found across most UK online casino sites. The wheel features 37 pockets: numbers 1–36 (colored red and black) and a single green zero (0). Because there is only one zero pocket, the house edge sits at a relatively low 2.70%.
- American Roulette: This wheel features 38 pockets. It includes numbers 1–36, a single zero (0), and an additional double zero (00). This extra green pocket doubles the casino’s advantage, pushing the house edge up to 5.26%. Statistically, you should always choose European roulette over American roulette when both are available.
- French Roulette: Built on the single-zero European wheel, French roulette includes special rules like La Partage or En Prison. If the ball lands on zero, you only lose half of your even-money outside bets, dropping the house edge on those specific wagers to just 1.35%.
Inside vs. Outside Bets (Payouts & True Probabilities)
Roulette bets fall into two distinct categories based on their placement on the table layout:
Outside Bets are located on the outer perimeter of the betting grid. They cover large groups of numbers (like colors or dozens). Because they have a higher likelihood of winning, they offer lower payouts. Inside Bets are placed directly on individual numbers or small intersecting lines on the grid. They offer significantly higher payouts but carry a lower probability of hitting.
Below is a complete breakdown of every standard roulette bet, its payout, and the true mathematical probability of winning on a standard 37-pocket European wheel.
| Bet Type | Coverage | Payout | True Probability (European) |
|---|---|---|---|
| Outside Bets (Lower Risk, Lower Payouts) | |||
| Red / Black | 18 numbers of chosen color | 1:1 | 48.65% |
| Odd / Even | 18 odd or 18 even numbers | 1:1 | 48.65% |
| High / Low | 1–18 (Low) or 19–36 (High) | 1:1 | 48.65% |
| Dozens | 1st, 2nd, or 3rd block of 12 numbers | 2:1 | 32.43% |
| Columns | A vertical line of 12 numbers | 2:1 | 32.43% |
| Inside Bets (Higher Risk, Higher Payouts) | |||
| Six Line | Two adjacent rows (6 numbers) | 5:1 | 16.22% |
| Corner / Square | A block of 4 intersecting numbers | 8:1 | 10.81% |
| Street | A single horizontal row (3 numbers) | 11:1 | 8.11% |
| Split | Two adjacent numbers | 17:1 | 5.41% |
| Straight Up | Any single number (including 0) | 35:1 | 2.70% |
Popular Online Roulette Variants
When playing at modern online operators, you will encounter innovative roulette variations that go beyond traditional tables:
- Lightning Roulette / Quantum Roulette: These live-dealer games use a standard European wheel but feature random multiplier strikes before each spin, boosting single-number payouts up to 500x. To balance these massive multipliers, non-multiplied Straight Up bets pay 29:1 instead of the standard 35:1.
- Multi-Wheel Roulette: Allows you to place a single bet across up to 8 spinning European wheels simultaneously.
- Speed Roulette: Designed for rapid play, with rounds completing every 25 seconds—ideal for players looking for fast-paced action.
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How to Play Roulette for Beginners
Roulette is one of the easiest casino games to learn because all outcomes depend strictly on random chance once the ball is spun. If you are new to the game, start with small stakes until you become comfortable with the timing and layout.
Here is a step-by-step walkthrough of how to join a table and place your bets online:
- Sign into your account at whatever casino site you have chosen. In our example, we will use Sky Casino.
- Head over to their live casino section and select ‘Live Roulette’
- Select the roulette game you would like to pick and it will redirect you to their roulette table
- Here, you can then pick what you would like to bet on, you do this by putting your virtual chip on a number, colour or column
- You can place multiple chips, with amounts of money that you prefer and you can place these chips in multiple places, not just in one place
- You only have a certain amount of time to place your bet before each round starts. You need to make sure it’s done before the timer runs out as you can’t place a bet whilst the ball is in the wheel.
- Watch and see where the ball lands! You win if the ball lands on the number, colour or area that you have wagered on. If you have won then you will receive your winnings in your balance instantly.
Essential Roulette Management Tips
Roulette is a game of independent random trials; every spin of the wheel is mathematically independent of the previous spin. No progressive betting system (such as the Martingale) can change the house edge over time. Responsible gameplay relies entirely on bankroll discipline and understanding probability.
Set a Budget & Manage Bankroll
Online roulette moves fast, with spins resolving every 30 to 60 seconds. Decide on a total bankroll before joining a table and divide that budget into small, consistent unit sizes (e.g., 1% to 2% of your budget per spin). Never increase stakes to chase losses.
Align Bets with Volatility Preference
Choose bets according to how long you want your bankroll to last. Outside bets (Red/Black, Odd/Even) win almost 48.65% of the time, providing lower payouts but steady gameplay. Straight Up inside bets offer high 35:1 payouts but win only 2.70% of the time, leading to significant variance.
Prioritize European and French Wheels
Always check the table rules before playing. Choosing a European wheel (2.70% house edge) over an American wheel (5.26% house edge) instantly cuts the casino’s mathematical edge in half without changing how you play.
How to Play Roulette FAQs
In standard roulette, the highest payout is 35 to 1 for a single-number (Straight Up) bet. However, bonus variants like Lightning Roulette offer multipliers reaching up to 500 to 1 on lucky numbers.
Bets placed directly on any individual number (0–36) pay out at 35 to 1. If you place a £1 wager on a single number and it wins, you receive £35 in profit plus your £1 stake back.
The safest bets (highest probability of winning) are Even-Money outside wagers: Red or Black, Odd or Even, and High (19–36) or Low (1–18). On a European wheel, each carries a 48.65% chance of winning.
When you bet directly on green zero (0) as a Straight Up bet, it pays 35 to 1, exactly like any other single number. However, if you place an outside bet (like Red/Black), zero causes those bets to lose unless you are playing French roulette with La Partage rules.