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Roulette Online Casino: Wheels, Bets & Strategy Guide
Published Jun 5, 2026 · New-U Team · 6 min read
Quick answer: Online roulette is a game of pure chance. The wheel has 37 numbers (European) or 38 (American). You bet on where the ball lands. European roulette has a 2.7% house edge; American roulette 5.26%. No strategy can overcome the house edge, but bankroll management reduces losses.
European vs American Roulette
European Roulette:
- 37 pockets: 0, 1–36
- House edge: 2.7%
- Better odds (preferred by players)
- Available at all major crypto casinos
American Roulette:
- 38 pockets: 0, 00, 1–36
- House edge: 5.26%
- Significantly worse for players
- Avoid if possible
Always choose European roulette when available. The extra 00 doubles the house edge.
Roulette Bet Types
Inside Bets (Higher Payout, Lower Odds)
- Straight: Bet on a single number (35:1 payout)
- Split: Bet on 2 adjacent numbers (17:1 payout)
- Street: Bet on 3 numbers in a row (11:1 payout)
- Corner: Bet on 4 numbers in a square (8:1 payout)
- Six Line: Bet on 6 numbers (5:1 payout)
Outside Bets (Lower Payout, Higher Odds)
- Red/Black: Even money (1:1 payout), ~48.6% win rate
- Odd/Even: Even money (1:1 payout), ~48.6% win rate
- 1–18/19–36: Even money (1:1 payout), ~48.6% win rate
- Dozen: Bet on 1–12, 13–24, or 25–36 (2:1 payout)
- Column: Bet on a vertical column (2:1 payout)
House Edge Explained
European roulette's 2.7% house edge means:
- For every €100 wagered, the casino expects to earn €2.70
- Over 1,000 spins at €1 per spin, you expect to lose ~€27
- No bet is "better" than another; they all have the same 2.7% edge
- Red/Black is not safer than Straight—it's just lower variance
Roulette Strategy (Educational)
⚠️ Important: No strategy can overcome the house edge. These are for understanding variance, not for profit.
Conservative: Bet Red/Black
Frequent small wins, slow downside. High variance is reduced.
Aggressive: Bet Straight
Rare big wins, long losing streaks. Variance is higher but potential payouts are 35x your bet.
Martingale (Educational, Not Recommended)
Double your bet after every loss until you win. This eventually recoups losses but risks betting your entire bankroll on a single spin. Bankroll depletion is likely before the system "works."
Bankroll Management
- Budget: Only play with money you can afford to lose
- Unit size: Bet 1–2% of your bankroll per spin
- Loss limit: Stop when you've lost X% of your session bankroll
- Win target: Take profits when you're ahead
Example: €100 bankroll, €1 per spin unit size. Stop when you've lost €20 (20% loss limit) or won €20 (20% profit target).
Responsible Gambling