Work out roulette house edge instantly with clear inputs, formula shown and shareable results.
Expected value per unit staked is the win probability times the payout minus the loss probability, and the house edge is the negative of that value. Every bet on a given wheel carries the same edge, 2.70% on single zero and 5.26% on double zero, so bet selection changes volatility but never the long-run cost.
Expected value
EV = P(win) x payout - P(lose), with P(win) = winning pockets / total pockets
House edge
edge = -EV x 100
EV = P(win) x payout - P(lose), with P(win) = winning pockets / total pockets. Expected value per unit staked is the win probability times the payout minus the loss probability, and the house edge is the negative of that value.
Every bet on a given wheel carries the same edge, 2.70% on single zero and 5.26% on double zero, so bet selection changes volatility but never the long-run cost.
Enter wheel type, bet type, stake per spin, number of spins. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.