Roulette Guide (UK): Wheels, Bets, Odds & Smart Basics

European roulette (single zero)

European roulette uses numbers 1–36 plus a single green zero (0). This is the most common and player-friendly version found on UK sites.

• Single zero only (0).
• Lower house edge than American roulette.
• Often the default version in UK lobbies.

Whenever you have a choice, European roulette is generally the better option for your long-term odds than American.

American roulette (double zero)

American roulette adds a second green pocket – 00 – alongside the single zero. That extra pocket increases the house edge.

• Layout includes both 0 and 00.
• Same payouts as European, but more losing outcomes.
• Generally less favourable for players.

Some UK sites still offer it, often for variety. If your goal is to stretch your bankroll, stick with single-zero games.

French-style rules: La Partage & En Prison

A few European/French roulette tables offer extra rules that slightly improve your odds on even-money bets:

• La Partage: if the ball lands on zero, half of your even-money bet is returned.
• En Prison: your even-money bet is “locked” for the next spin if zero hits; if your bet wins, you get it back.

If you see these rules clearly advertised, they are usually a small but genuine improvement for regular even-money betting (red/black, odd/even, high/low).

Outside bets – simpler, higher hit rate

Outside bets cover larger portions of the number grid. They win more often but pay lower odds – useful for a more stable, lower-volatility style of play.

• Red / Black: bet on the ball landing on any red or any black number.
• Odd / Even: all odd numbers or all even numbers.
• 1–18 / 19–36: low or high half of the numbers.
• Dozens: 1–12, 13–24 or 25–36.
• Columns: one of the three vertical columns on the layout.

Inside bets – bigger payouts, lower hit rate

Inside bets target smaller sections of the layout. They’re more volatile, but payouts are higher when they hit.

• Straight up: a single number (e.g. 17).
• Split: two numbers sharing a border (e.g. 17 & 20).
• Street: a row of three numbers (e.g. 16-17-18).
• Corner (square): four numbers meeting at a corner.
• Six line: two neighbouring streets (six numbers).

You can combine inside and outside bets on the same spin, but keep an eye on your total stake each round.

Common bet types & payouts

Payouts don’t change between European and American wheels – the extra 00 simply adds more losing pockets on American tables.

Why the house always wins in the long run

Roulette payouts are slightly lower than the “true” odds of each bet. That difference is the house edge, and it’s why the casino wins over many spins.

• European single-zero wheel has a lower house edge than American.
• Even-money bets can be slightly better on tables with La Partage/En Prison.
• Changing your stake size doesn’t change the underlying maths.

In the short term, anything can happen – but treat wins as good luck, not proof that you’ve “beaten” the game.

Betting systems vs reality

Many systems (Martingale, Fibonacci, D’Alembert) try to manage streaks by increasing or decreasing bet sizes.

• They can change the feel of your session but not the long-term edge.
• Martingale-style approaches risk hitting table limits or your own budget.
• Chasing after losses can quickly get out of hand.

A healthier approach is to pick stakes that fit your budget, accept the randomness and treat roulette as entertainment, not a money-making plan.

RNG roulette (digital)

Digital roulette uses a random number generator (RNG) to pick the winning number – there’s no physical wheel.

• Very fast spins – good for short sessions or testing bet types.
• RNGs on UK-licensed sites are tested and certified.
• Often starts at lower minimum stakes than live tables.

Check the game info section for wheel type, rules and return-to-player (RTP) percentages.

Live dealer roulette

Live roulette streams a real wheel and dealer from a studio – closer to being on a casino floor, but from home.

• More immersive and social than RNG games.
• Slower pace, which some players find easier to manage.
• Multiple variants: European, Lightning/Multiplier games, VIP tables and more.

For etiquette, tipping and tech setup, see our Live Dealer Guide (UK).

Smart basics

• Prefer European or French roulette over American when possible.
• Mix in outside bets if you want a steadier hit rate.
• Decide your total budget for the session before you start.
• Take regular breaks and don’t speed up after a loss.
• Avoid treating roulette as a side hustle – it’s entertainment, not income.

Bankroll & safer play

• Use deposit, loss and session limits on your account.
• Keep gambling money separate from bills and essentials.
• Stop for the day if you hit your limit, regardless of results.
• If you feel pressured to “get even”, sign out and step away.

Our Responsible Gambling (UK) guide covers more tools and support services if roulette or any other game stops feeling fun.

Helpful next reads

• Payouts & Banking in the UK – deposits, withdrawals & KYC.
• Casino Bonuses Explained – understand wagering requirements and restrictions.
• Blackjack Basics (UK) – another popular table game with more decision-making.
• How to Play Baccarat (UK) – simple, quick table game for a change of pace.
• Best Online Casinos (UK) – shortlist of long-running operators.