Roulette calculator
Roulette Expected Value Calculator
Estimate the long-run average result for a roulette bet based on wheel type, bet type, stake, and number of spins.
Quick answer
Expected value is the average result across many repeated bets. On standard bets, European roulette averages about -2.70% of total amount wagered, while American roulette averages about -5.26%.
Calculate expected value
Expected value result
- Total wagered
- $1,000
- House edge
- 2.70%
- Win chance per spin
- 48.65%
- Average expected result
- -$27.03
If one red bet wins at $10, the profit is $10 and the returned amount including stake is $20.
How to read expected value
Expected value multiplies the amount wagered by the wheel's house edge. If you wager $1,000 total on European roulette, the average expected result is about -$27.03.
Bet type changes win frequency and payout size. Wheel type changes the house edge. That is why European roulette is the default baseline for this calculator.
For session planning, pair this with the roulette bankroll calculator.
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