House Edge Calculator
Every casino game has a built-in mathematical advantage for the house. This calculator shows you exactly how much you can expect to lose over time based on the game you play, your bet size, and how many rounds you play.
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Understanding House Edge and RTP
The house edge is the percentage of each bet that the casino expects to keep over the long run. If a game has a 3% house edge, the casino will statistically earn $3 for every $100 wagered. The player's expected return is the remaining $97.
RTP (Return to Player) is the flip side: it represents the percentage returned to players over time. House Edge + RTP always equals 100%.
These numbers are based on millions of rounds. They do not predict what will happen in your next 50 spins. Short-term results are driven by variance (volatility), and it is entirely possible to win or lose far more than the statistical average in any given session.
The key takeaway: games with a lower house edge give your bankroll more staying power. If you plan to play for a long session, choosing a low-edge game like Blackjack with basic strategy means your money will last significantly longer than playing American Roulette or Keno.
Casino Game House Edge Reference
| Game | House Edge | RTP | Notes |
|---|---|---|---|
| Blackjack | 0.50% | 99.50% | With basic strategy. Varies with rules. |
| Baccarat (Banker) | 1.06% | 98.94% | 5% commission on banker wins. |
| Baccarat (Player) | 1.24% | 98.76% | No commission, slightly higher edge. |
| Craps (Pass Line) | 1.41% | 98.59% | One of the best bets in the casino. |
| Video Poker | 2.00% | 98.00% | Jacks or Better, full-pay table. |
| European Roulette | 2.70% | 97.30% | Single zero wheel. |
| Slots (High RTP) | 3.00% | 97.00% | Top-tier slots from reputable providers. |
| Slots (Average) | 4.00% | 96.00% | Industry average for online slots. |
| American Roulette | 5.26% | 94.74% | Double zero wheel. Avoid if European is available. |
| Slots (Low RTP) | 6.00% | 94.00% | Budget slots. Check RTP before playing. |
| Keno | 25.00% | 75.00% | One of the worst odds in the casino. |