GAME & ENTERTAINMENT – GAMBLING & BETTING MATHEMATIC CALCULATOR
Roulette Expected Loss
A precise tool.
What is the Roulette Expected Loss & How does it work?
Roulette is a classic casino game where a ball spins around a wheel divided into numbered pockets. The layout of the wheel determines the probability of any single outcome, and the casino builds a statistical advantage into the game.
The advantage, known as the house edge, is the difference between the true odds of a bet and the payout offered by the casino. In European roulette the wheel has 37 pockets (0‑36) giving a house edge of 2.70 %, while the American wheel adds a double zero, raising the edge to 5.26 %.
Because the edge is a fixed percentage of each wager, the expected loss per bet can be calculated directly from the stake and the edge.
EL = B \times H
EL = expected loss per bet
Parameters
Result
—
Frequently Asked Questions
What is the house edge in European roulette?
The house edge in European roulette is 2.70%.
How does the house edge differ between European and American roulette?
European roulette has a lower house edge at 2.70%, while American roulette has a higher house edge of 5.26% due to the double zero pocket.
Can I calculate my expected loss with this calculator?
Yes, you can input your bet amount and number of spins to estimate your expected loss based on the house edge.
What does the house edge mean in roulette?
The house edge is the casino’s statistical advantage, representing the percentage of each bet that the casino expects to keep over time.
How do I use this calculator for American roulette?
Select ‘American’ as the wheel type and input your bet amount and number of spins to calculate expected loss with a 5.26% house edge.
Can this calculator predict my actual losses?
No, it calculates expected loss based on probability and does not predict actual outcomes.
Is there a difference in the number of pockets between European and American roulette wheels?
Yes, European roulette has 37 pockets (0-36), while American roulette has 38 pockets (0, 00, and 1-36).
Results are for informational purposes only and do not constitute professional advice.