Roulette looks intimidating at first glance because the table is covered in betting options, but the game itself is simple: a ball lands on one number, and you are paid based on how precisely you predicted where. Understanding the difference between inside and outside bets is really the whole game.
European vs American Roulette
European roulette has a single zero pocket. American roulette adds a second, double-zero pocket. That one extra pocket nearly doubles the house edge, from 2.7% on European wheels to 5.26% on American ones. If a table offers a choice, European is the better bet every time, before a single wager is even placed.
Inside Bets Explained
Inside bets are placed directly on the numbered grid and cover fewer numbers, which means lower odds of winning but much higher payouts:
- Straight up – a single number, paying 35:1.
- Split – two adjacent numbers, paying 17:1.
- Street – a row of three numbers, paying 11:1.
- Corner – four numbers meeting at a point, paying 8:1.
- Six line – two adjacent rows (six numbers), paying 5:1.
Outside Bets Explained
Outside bets sit around the edge of the grid and cover large groups of numbers, trading payout size for a much better chance of winning:
- Red or black – roughly half the wheel, paying even money (1:1).
- Odd or even – roughly half the wheel, paying even money (1:1).
- Low (1–18) or high (19–36) – roughly half the wheel, paying even money (1:1).
- Dozens – a third of the wheel (1–12, 13–24, or 25–36), paying 2:1.
- Columns – a third of the wheel arranged vertically on the table, paying 2:1.
Payouts and House Edge by Bet Type
Here is the detail most players miss: on a European wheel, every single bet type carries the same 2.7% house edge, whether it is a 35:1 straight-up bet or an even-money color bet. The payout odds are calibrated against the true probability of each bet, so no bet type is mathematically better than another – only the variance changes. A straight-up bet swings wildly between long losing stretches and rare large wins, while a color bet produces steadier, smaller results. Neither approach beats the house edge; they simply distribute the same expected loss differently.
A Simple Approach for Beginners
Start with outside bets while you get a feel for the table – they are easier to track, lose more slowly, and let you watch several spins without a large swing in your balance. Move to inside bets deliberately, as a smaller portion of your budget, once you understand that you are trading win frequency for payout size, not buying better odds. Betting systems like Martingale or Fibonacci change how losses escalate across a session but do not change the underlying 2.7% or 5.26% edge on any bet.
Roulette’s house edge sits close to blackjack’s once you play blackjack with proper basic strategy – the difference is that blackjack rewards correct decisions while roulette outcomes are pure chance regardless of how you bet. If you are still deciding which table games to try, our guide to live dealer games covers how a real wheel and dealer differ from an RNG version.
Ready to spin the wheel?
If you like the speed of roulette but want to choose your own multiplier, see how the odds really work in crash games.
Frequently Asked Questions
Q: What is the difference between inside and outside bets in roulette? A: Inside bets are placed on specific numbers or small groups on the numbered grid, paying higher odds for lower win probability. Outside bets cover large groups like colors or ranges, paying lower odds for a much better chance of winning.
Q: Should I play European or American roulette? A: European, whenever available. Its single-zero wheel carries a 2.7% house edge versus 5.26% on the American double-zero wheel – a meaningful difference over time.
Q: Which roulette bet has the best odds? A: On a fair wheel, every bet type carries the same house edge – the payout odds are calibrated to match each bet’s true probability. No single bet type is mathematically better than another; only the variance differs.
Q: What is the safest bet in roulette? A: Outside bets like red/black or odd/even offer the highest win probability and the steadiest results, since they pay even money on roughly half the wheel. “Safest” here means lower variance, not a better house edge.
Final Thoughts
Roulette rewards understanding the trade-off between inside and outside bets more than it rewards any particular system or number choice. Every bet type shares the same house edge on a fair wheel – what changes is how bumpy the ride to that average outcome feels. Please gamble responsibly and only wager what you can afford to lose.