House Edge Guide · All Casino Games · 2026
Casino House Edge Explained — Every Game Compared
The house edge is the casino’s mathematical advantage on every bet. Understanding it tells you how much you can expect to lose per dollar wagered over time — and which games give you the best value for your entertainment budget.
What is House Edge?
House edge is the percentage of every bet that the casino keeps on average over millions of rounds. A 2% house edge on roulette means that for every $100 wagered, the casino expects to keep $2 in the long run. In any single session, results vary wildly — you can win or lose far more. But over thousands of bets, the house edge is relentless.
House edge and RTP (Return to Player) are two sides of the same coin. If a slot has 96% RTP, the house edge is 4%. If blackjack has a 0.5% house edge with basic strategy, the RTP is 99.5%. These figures are long-run averages across millions of rounds, not session guarantees.
Why house edge matters for budget players
With a $50 session budget, choosing a game with 1% house edge vs 5% house edge makes a significant difference in how long your money lasts. At $1 per round and 100 rounds per hour, the expected loss is $1/hour vs $5/hour. Over a 3-hour evening, that is $3 vs $15. The lower the house edge, the more entertainment per dollar.
| Game | House Edge | RTP | Conditions | Verdict |
|---|---|---|---|---|
| Blackjack | 0.5% | 99.5% | With perfect basic strategy | BEST |
| Video Poker (Jacks or Better) | 0.5% | 99.5% | With optimal strategy | BEST |
| Baccarat (Banker bet) | 1.06% | 98.94% | Banker bet only | EXCELLENT |
| European Roulette | 2.7% | 97.3% | Single zero wheel | GOOD |
| Craps (Pass Line) | 1.41% | 98.59% | Pass line bet | GOOD |
| Low volatility slots | 3–5% | 95–97% | 96%+ RTP titles | OK |
| American Roulette | 5.26% | 94.74% | Double zero wheel | AVOID |
| High volatility slots | 5–10%+ | 90–95% | Progressive jackpots often below 94% | HIGH RISK |
| Baccarat (Tie bet) | 14.36% | 85.64% | Tie bet only | AVOID |
| Keno | 20–35% | 65–80% | Varies by casino | WORST |
How to Use This Information
Blackjack basic strategy
The 0.5% house edge on blackjack only applies when you use mathematically correct decisions on every hand — a system called basic strategy. Without it, the edge rises to 2–4% depending on how you play. Basic strategy charts are freely available online and legal to reference while playing at online casinos. Memorise the most common decisions (always split aces and 8s, never split 5s or 10s, double down on 11 against a dealer 2–10) and you capture most of the edge reduction.
Choosing slots
Always check the RTP before playing a slot. It is usually in the game information or help section. Look for 96% or above. Avoid jackpot slots for regular sessions — the RTP is often below 94% and most of the return is concentrated in the jackpot prize that most players will never win. For consistent session value, low-volatility slots at 96%+ RTP give the best experience per dollar.
The one bet to always avoid
The baccarat tie bet has a 14.36% house edge. It is the worst commonly available bet in any casino. Even if you enjoy baccarat, never place the tie bet — stick to banker or player bets exclusively.
House Edge vs Variance
House edge and variance are separate concepts. A game can have a low house edge but high variance (blackjack without perfect strategy), or a moderate house edge with very low variance (European roulette on even money bets). For budget players, low house edge AND low variance is ideal — it means your balance fluctuates less and your session lasts longer.
High variance games (progressive jackpots, high-volatility slots) drain small budgets quickly. The house edge is the long-run average — variance determines how wild the short-run journey is. With a $50 budget, you need enough rounds to last a session, which means low variance matters as much as low house edge.
- For longest sessions: European roulette (even money bets) or low-volatility slots at 96%+ RTP
- For best mathematical value: blackjack with basic strategy or video poker with optimal play
- For excitement with controlled budget risk: medium volatility slots at 96%+ RTP