
Learn how to play online roulette. Understand the wheel layout, chip betting, payouts, and round flow at US online casinos.
Last updated:In online roulette, you place bets on where a small ball will land on a spinning wheel. Outcomes depend entirely on probability, and winning bets pay out automatically to your account balance. Here is a walkthrough of how the game works, from the wheel and betting grid to the basic rules, screen controls and US legal basics.
Key Takeaways: How to Play Online Roulette
- American vs European Wheels: American roulette with 38 pockets and a double zero (5.26% house edge) is the standard in most US online casinos, while single-zero European wheels offer more favorable player odds at a 2.70% edge.
- Inside vs Outside Wagers: Bets are divided between high-variance inside bets on specific numbers (paying up to 35:1 for a straight up) and lower-risk outside bets on broader categories like red/black or dozens (paying 1:1 or 2:1), with all winning stakes returned automatically.
- Impact of Zero Pockets: The green zero pockets establish the casino’s mathematical advantage by causing standard outside bets to lose – unless rare rules like La Partage apply – while novelty triple- and quadruple-zero wheels inflate the house edge even further.
- US Legal and Age Requirements: Legal real-money online roulette is regulated state by state rather than federally, requiring licensed geolocation tracking within authorized state lines and a minimum age of 21 across nearly all jurisdictions.
What Online Roulette Is and How a Round Works
You can play online roulette on a computer or phone, either through software games that run on Random Number Generators (RNG) or live dealer streams hosted by a real person in a studio.
Every round follows the same basic cycle. You pick a table in the lobby based on the wheel style and minimum bet limits, select your chip value, and place your bets on the digital grid. If you are playing live, you need to set your bets before the onscreen timer runs out. Once bets close, the wheel spins one way and the ball spins the other. As soon as the ball lands in a pocket, the software clears losing chips and adds your winnings straight to your balance.
To see how software generators and video streams run behind the scenes, check our online roulette formats guide.
The Wheel and the Numbers
The wheel features pockets numbered 1 through 36, alternating between red and black, along with green zero pockets. From 1 to 10 and 19 to 28, odd numbers are red and even numbers are black. From 11 to 18 and 29 to 36, odd numbers are black and even numbers are red.
Most US online casinos offer American roulette as their standard game. It has 38 pockets: numbers 1 through 36, a single zero (0), and a double zero (00). European roulette is offered at some casinos, and it gives you better odds because it has 37 pockets and only one zero.
You might also spot novelty tables with triple-zero (39 pockets) or quadruple-zero wheels (40 pockets). These extra zero pockets raise the casino’s advantage noticeably, making them much tougher on your bankroll. For a full breakdown of how zero pockets affect house margins and odds, check our roulette house edge guide.
The Betting Table Layout
The betting area, or grid, displays all available bets on your screen. You place bets simply by clicking or tapping where you want your chips to go.
The center of the layout has 36 numbered boxes arranged in three columns of 12 numbers each, with the green zero pockets placed directly at the top. Around this central section are larger boxes for broader bets like colors, odds and evens, and number ranges.
The board splits into inside bets (single numbers and small groups of touching numbers) and outside bets (larger groups of 12 or 18 numbers). To see all wager types, chip placements, and payout ratios, read our roulette bets and payouts guide.
Chips and Table Limits
Instead of handling physical chips, you select digital chips from a tray at the bottom of the screen, where each color marks a specific dollar amount. You click a chip to pick its value, then click a spot on the board to drop your bet.
Every table sets minimum and maximum limits, shown in the lobby or on an onscreen info plaque. These limits tell you the smallest and largest amounts you can bet on a single spot or during a full round.
You can stack multiple chips on one spot or spread your bets across different parts of the board while the betting window is open. If you misplace a chip, you can use the undo or clear buttons to fix your layout before the spin begins.
Step-by-Step Guide to an Online Round
Once you open a table, you wait for any active round to wrap up. When the new round starts, you place your inside or outside bets on the grid. Live dealer tables usually show a countdown timer for this step.
When betting time closes, the dealer or software calls “no more bets”, locking the board. In RNG games without a timer, clicking “Spin” locks your bets right away. The wheel turns, and the ball is launched along the track in the opposite direction.
As the ball slows down, it drops into one of the numbered pockets. The software highlights the winning number on the board, clears away losing bets, and credits your winnings to your balance before the next round opens.
How Payouts Work
Payouts are listed as ratios like 35:1, 2:1, or 1:1. These ratios show your profit relative to what you bet, and every winning payout gives you your original stake back along with your profit.
For example, a straight up bet on a single number pays 35:1. If you bet $10 on 17 and win, you get $350 in profit plus your $10 stake back, for $360 total. An even-money bet like red/black pays 1:1, so a $10 bet returns $10 in profit plus your $10 stake, giving you $20 back.
The software handles all calculations instantly, so you do not have to worry about payout errors. If you have several winning bets on the same spin, the system combines them and updates your balance right away. To see payout formulas, table coverage, and odds for each bet, check our roulette bets and payouts guide.
Basic Rules: What Happens When the Ball Lands on Zero
The zero pockets are the source of the house edge. When the ball lands on a zero, outside bets (red/black, odd/even, low/high, dozens and columns) lose, while inside bets that include the zero win as normal: a straight up bet on 0 pays 35:1. On an American wheel, 0 and 00 are separate pockets, so a bet on one does not win when the other lands.
Some single-zero tables add La Partage, which returns half of an even-money bet when the ball lands on zero, or En Prison, which holds the bet on the table for one more spin. Not every table offers these rules, so check the game’s help screen before you play. To see how they change the math, read our roulette house edge guide.
Can You Play Online Roulette in the United States?
Yes, but only through state-licensed casinos in the states that allow them. Real-money online casino gaming is regulated state by state, so legal online casinos operate in far fewer states than online sportsbooks.
In states with legal online casinos, players must be at least 21 years old in almost all jurisdictions. Licensed sites use geolocation software to verify that you are physically within state lines while playing.
These state-licensed platforms follow strict local gaming regulations, which separates them from promotional social or sweepstakes casinos that use virtual tokens. You can check the current list of legal states and local details on our US roulette hub.
Next Steps
If you want to see why no betting system can change these fixed payouts, read our roulette betting systems and myths guide. Always treat roulette as paid entertainment, set limits before you play, and visit our responsible gaming page for more help.
❓ How to Play Online Roulette: Frequently Asked Questions
What is the best roulette bet for a beginner?
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Author:
Lucas Portela
Owner, BoldGambler • Avanhandava/SP
Oddsmaker, affiliate and content creator in the iGaming industry.
