What Is Double Zero in Roulette? Definition Guide
Double Zero refers to the additional green pocket marked ’00’ on American Roulette wheels, distinguishing it from single zero European variants and increasing the house edge to 5.26%.
In practice, this means 38 pockets total (1-36, 0, 00) instead of 37, altering payout odds and player probabilities. For Canadian players accessing licensed online casinos, recognising double zero helps evaluate game fairness, as it directly impacts long-term expected losses compared to single zero tables offering better odds at 2.70% house edge.
Double Zero Mechanics and Wheel Layout
American Roulette with double zero uses a wheel featuring numbers 1-36 alternating red and black, plus single green zero and double zero pockets. This configuration results in non-consecutive number sequences for balanced distribution. All even-money bets (red/black, odd/even, high/low) lose when the ball lands on either zero, capturing one-fifth of outcomes and driving the elevated house advantage.
Double Zero Impact on Odds and Strategy
House Edge Comparison
Double zero raises the house edge significantly over single zero, making straight-up bets pay 35:1 despite true odds of roughly 1 in 38. Players should prioritise single zero where available in regulated markets, as it reduces mathematical disadvantage. In live dealer streams from licensed operators, table minimums often reflect this risk-reward dynamic.
| Roulette Variant | Zero Pockets | House Edge | Total Pockets |
|---|---|---|---|
| European | Single (0) | 2.70% | 37 |
| American | Double (0, 00) | 5.26% | 38 |
| French (La Partage) | Single (0) | 1.35% | 37 |
