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Online roulette looks simple, but the wheel you choose decides how much each spin costs you. A single-zero European table carries a house edge of 2.70%, an American double-zero wheel 5.26%. This guide covers the three main wheels, every bet and payout, live roulette with a real croupier and what betting systems can and cannot do.
Short answerPlay online roulette on a single-zero wheel: European and French tables have a house edge of 2.70%, against 5.26% on American double-zero roulette, and French rules on even-money bets soften the zero further. Every bet on the same wheel carries the same edge, so choose bets for the ride you want, not for a system. Practise in free mode, then play live or digital roulette for real money at 22BET.
European wheel
37 pockets, single zero
House edge, European
2.70% on every bet
House edge, American
5.26%; 7.89% on the five-number bet
Best value
French or European single-zero tables
Formats
Digital (RNG) and live dealer
Age
18+ only
Online roulette: how the roulette wheel and table work
Online roulette uses the same wheel and table as a land-based casino. A ball spins around a numbered wheel, you bet on where it will land, and the table pays according to how many numbers your bet covers. The European roulette wheel has 37 pockets: the numbers 1 to 36, coloured red and black, plus a single green zero. The American wheel adds a second green pocket, double zero, for 38 in total.
The roulette table is the betting layout next to the wheel. The 36 numbers sit in a grid of twelve rows and three columns, with zero (and double zero on American tables) at the top. Chips on the numbers or on the lines between them are inside bets. Chips in the boxes around the edge, such as red, odd or the first dozen, are outside bets, and they pay less because they cover more numbers.
There are two ways to play. Digital roulette, also called RNG or virtual roulette, uses a random number generator and an animated wheel, so a spin takes seconds. Live roulette streams a real wheel and croupier from a studio, and you bet on screen within a timer. On the same wheel the odds are identical; only the pace, the atmosphere and the stakes differ.
European vs American vs French roulette: the house edge
The most important choice in any roulette game is the wheel. On a European wheel the zero is the casino’s only advantage: every bet pays as if there were 36 pockets, but there are 37. That gives a house edge of 1/37, or 2.70%. An American wheel has two zeros and 38 pockets, so the edge rises to 1/19, or 5.26%. One American bet is worse still: the five-number bet on 0, 00, 1, 2 and 3 carries an edge of 7.89%.
French roulette uses the single-zero wheel too, with a different layout and French names for the bets. Many French tables add la partage: when the ball lands on zero, you lose only half of any even-money bet such as red, odd or high. Others use en prison, where the stake is held for the next spin and returned if that spin wins. Either rule softens the zero on even-money bets, which makes French roulette the best-value wheel for outside-bet players.
In euro, the gap is easy to see. Say you play 100 spins at €2, €200 staked in total. Over the long run a European wheel costs you about €5.40 of that on average, an American wheel about €10.52, nearly twice as much for the same entertainment. A single session can go either way, but the edge decides where the averages settle, so never sit at a double-zero wheel when a single-zero table is open.
European, French and American roulette compared
Variant
Pockets
House edge
What to watch for
European roulette
37: numbers 1–36 plus a single zero
2.70% on every bet
The standard choice online; check the table really says single zero
French roulette
37: single zero, French layout and racetrack
2.70%, lower on even-money bets with la partage or en prison
Look for la partage or en prison in the table rules
American roulette
38: numbers 1–36, zero and double zero
5.26%; 7.89% on the five-number bet
Skip it whenever a single-zero table is available
Roulette bets and payouts: the complete table
Every roulette bet is priced the same way: the payout is what the bet would be worth on a wheel with no zero. A straight-up bet on one number pays 35 to 1, so a winning €1 chip returns €36 including your stake. Bets that cover more numbers win more often and pay less. Because the zero is the only difference, every bet on a European wheel carries the same 2.70% edge; your choice changes how bumpy the session feels, not what it costs.
Outside bets, columns and dozens all lose when zero lands. European and French tables also offer call bets on the racetrack, an oval layout that follows the order of the wheel: Voisins du Zéro covers the 17 numbers around zero, Tiers du Cylindre the 12 opposite it, and Orphelins the 8 left over. They are packages of ordinary splits and straight-up bets, so the edge stays the same.
Roulette bets, payouts and chances per spin
Bet
Covers
Pays
Chance per spin (European)
Chance per spin (American)
Straight up
1 number
35 to 1
1 in 37
1 in 38
Split
2 neighbouring numbers
17 to 1
2 in 37
2 in 38
Street
3 numbers in a row
11 to 1
3 in 37
3 in 38
Corner
4 numbers in a square
8 to 1
4 in 37
4 in 38
Five-number
0, 00, 1, 2 and 3
6 to 1
not offered
5 in 38
Six line
6 numbers in two rows
5 to 1
6 in 37
6 in 38
Dozen
12 numbers: 1–12, 13–24 or 25–36
2 to 1
12 in 37
12 in 38
Column
12 numbers in one column
2 to 1
12 in 37
12 in 38
Red or black
18 numbers
1 to 1
18 in 37
18 in 38
Odd or even
18 numbers
1 to 1
18 in 37
18 in 38
High or low
18 numbers: 1–18 or 19–36
1 to 1
18 in 37
18 in 38
How to play roulette online: step by step
Digital or live, every roulette game follows the same pattern. The first time, play a few rounds in free mode or at the lowest stake so the buttons and the betting timer are familiar before real money is on the felt.
Pick a single-zero tableOpen the roulette lobby and choose European or French roulette. The info panel shows the number of zeros and the minimum and maximum stakes.
Choose a chip valueYour session budget should cover many spins at that chip size, not three or four.
Place your betsTap the layout to put chips on numbers, lines or outside boxes, or use the racetrack for call bets. On live tables, finish before the timer closes.
Watch the spinThe ball settles, winning bets are paid automatically and losing chips are cleared.
Rebet, change or stopRepeat the same bets with rebet or clear the layout. Glance at your balance, not the history panel, before deciding to carry on.
Live roulette: online casino roulette with a real dealer
Live roulette streams a real wheel from a studio or casino floor. A croupier spins the ball, cameras show the result from several angles, and the software reads the number and settles bets in seconds. For many Irish players, live casino roulette is the closest thing to a night at a real table without leaving the sofa in Cork or Galway, and you watch every result happen.
Live roulette games come in several styles. Standard live European roulette runs at the pace of a real table. Speed and auto roulette tables shorten the betting window or use an automatic launcher for more spins per hour. Immersive formats add slow-motion replays of the ball. Multiplier games such as Lightning Roulette boost a few straight-up numbers each round and pay less on an ordinary straight-up win to fund them, so read the paytable first.
Before you join a live roulette table, check the wheel type, the minimum and maximum stake, and whether French rules apply. Live tables usually ask for a higher minimum than digital roulette, because a human dealer runs each one. Our live casino guide explains studios and streams, and the best live casino page shows how we judge a live lobby.
Roulette strategy: betting systems explained without promises
A roulette strategy can shape how your money moves, but it cannot change the odds. Each spin is independent, every bet on the same wheel has the same edge, and no sequence of stakes turns a negative game positive. A system only trades many small wins for occasional big losses, or the reverse.
Take the Martingale, the best-known roulette betting system. You bet €5 on red and double after every loss, so one win recovers everything and leaves you €5 up. The catch is the losing run. After six spins without red you have lost €315, and your next bet is €320 to win back just €5. On a European wheel, six straight losses on red turn up in roughly one sequence in 55: rare in one evening, close to inevitable over many. Table maximums can also stop the doubling before it recovers.
Slower systems such as the Fibonacci or the d’Alembert soften the curve without removing it. Reverse systems like the Paroli raise the stake after wins, which keeps losses at your base stake but hands streaks back quickly. The most useful roulette strategy is the dull one: a single-zero wheel, a flat stake you are comfortable losing, a session budget and a stop point.
Roulette betting systems and their catch
System
How it works
The catch
Martingale
Double your stake after each loss on an even-money bet
A short losing run demands huge stakes and can hit the table maximum
Fibonacci
Move one step up the sequence 1, 1, 2, 3, 5, 8 after a loss and two steps back after a win
Slower growth, but a long losing run still climbs fast
d’Alembert
Add one unit after a loss and take one away after a win
It assumes wins and losses even out, which the zero prevents
Labouchère
Write a line of numbers, bet the sum of the first and last, cross them off when you win
Losing runs make the line longer and the stakes bigger
Paroli
Double after a win and reset after three wins or a loss
Losses stay small, but most streaks end before the payoff
Flat betting
The same stake on every spin
Your average loss is simply the edge times what you stake
Roulette results today, simulators and free roulette games
Searches for roulette results today usually come from players hunting hot numbers. Live tables show recent results and a hot and cold panel, and some sites publish the history of their wheels. On a fair wheel none of it changes the next spin: a number missing for 100 spins is no more due than one that landed twice in a row. Believing otherwise is the gambler’s fallacy.
A roulette simulator or virtual roulette game is useful for learning instead. Free online roulette games let you practise call bets, watch how fast a doubling system grows and learn the layout before staking money. Demo credits cannot be withdrawn, and a simulator that shows a system winning has simply not run long enough. Roulette slots online, listed among the reels in some lobbies, are RNG roulette games, so check the wheel type as usual.
Online roulette for real money is open to players in Ireland, but not yet under an Irish casino licence. GRAI, the Gambling Regulatory Authority of Ireland, has issued remote betting licences since 1 July 2026, but applications for gaming licences, the kind an online casino needs, open only throughout 2027 and 2028. In October 2026 no online casino holds a GRAI gaming licence, so read the terms, withdrawal rules and limit tools before you deposit; our safe online casino checklist helps.
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Bitcoin roulette plays like any other version; only the cashier changes. The coin’s value can move between deposit and cash-out, and Revenue charges CGT on gains from disposing of crypto-assets: the first €1,270 of annual gains is exempt, and the rate is 31% from 7 October 2026. See crypto casino Ireland for the detail, and set a deposit limit before your first spin; the responsible gambling page lists free Irish support.
Frequently asked questions
How do you play roulette online?
Choose a table, pick a chip value and place chips on numbers or outside bets such as red or odd. Winning bets are paid automatically; on live tables you bet within a timer before the croupier spins.
What are the best odds in roulette?
Single-zero European or French roulette, with a house edge of 2.70% on every bet; French tables with la partage make even-money bets cheaper still. American roulette has a 5.26% edge.
Is online roulette rigged?
Digital roulette uses a random number generator and live roulette shows a real wheel on camera. The casino’s advantage comes from the zero, not tampering, so choose a known operator and a single-zero wheel.
Can I play online roulette for real money in Ireland?
Yes, at online casinos that accept Irish players. No online casino holds a GRAI gaming licence yet, because those applications open throughout 2027 and 2028, so check the operator’s terms and withdrawal rules first.
Can I play live roulette on my phone?
Yes. Live roulette runs in mobile browsers and casino apps; lower the video quality on mobile data and bet early in the timer. Our mobile casino guide has more tips.
What is a roulette simulator?
A free demo of the game, or a tool that spins thousands of rounds to show how a betting system behaves. Good for learning the layout; demo winnings cannot be withdrawn.
Where can I see roulette results today?
Live roulette tables show recent numbers and hot and cold statistics in the game window. They describe the past only; every spin on a fair wheel is independent.
Does the Martingale roulette strategy work?
It wins small amounts often and loses large amounts occasionally. Starting at €5, six losses in a row cost €315, and table maximums can stop the doubling. The house edge never changes.
Are online roulette games free to play?
Many casinos offer digital roulette in demo mode with play credits. Live roulette normally needs a real-money balance because a croupier runs the table.
What is bitcoin roulette?
Roulette played with a crypto deposit. The wheel and odds are the same; the differences are the cashier, the coin’s price swings and how crypto gains are taxed.
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