Casino House Edge Explained (Las Vegas)
Every casino game includes a built-in mathematical advantage for the casino. This advantage is called the house edge. Understanding house edge helps players choose games with better odds and manage expectations when playing in Las Vegas.
House edge does NOT mean you cannot win — it represents the average expected loss over long-term play.
1) What is House Edge?
House edge is the percentage of each bet that the casino expects to keep over time.
Example:
- If a game has a 5% house edge, the casino expects to earn $5 for every $100 wagered over the long run.
Individual sessions vary — players can win or lose regardless of house edge.
2) Typical House Edge by Game
| Game | Typical House Edge | Notes |
|---|---|---|
| Blackjack (basic strategy) | ~0.5% – 1% | One of the best odds in the casino. |
| Baccarat (Banker bet) | ~1.06% | Simple and low edge. |
| Craps (Pass Line) | ~1.41% | Better with odds bets added. |
| Roulette (Double Zero) | ~5.26% | European single zero is better (~2.7%). |
| Video Poker (optimal play) | ~0.5% – 2% | Varies by paytable and skill. |
| Slots | ~5% – 15% | Wide variation depending on machine. |
| Three Card Poker | ~3% – 7% | Higher with side bets. |
| Keno | 20%+ (often) | Lottery-style game. |
3) Why House Edge Exists
- Allows casinos to operate profitably.
- Ensures long-term sustainability of games.
- Creates predictable statistical outcomes over time.
4) Low Edge vs High Edge Games
| Lower House Edge (Better Odds) | Higher House Edge |
|---|---|
| Blackjack | Keno |
| Baccarat Banker | Slots (varies) |
| Craps Pass Line + Odds | Side Bets |
| Video Poker (skill based) | Roulette Double Zero |
5) Common Misunderstandings
- Hot or cold streaks do not change house edge.
- Past results do not affect future outcomes.
- No betting system eliminates house edge.
House edge applies over long periods — short-term wins are still possible.
6) Choosing Games Wisely
- Learn basic strategy for blackjack or video poker.
- Avoid excessive side bets.
- Understand rules before playing.
- Balance entertainment value with odds.
Responsible Gaming
Understanding house edge helps players maintain realistic expectations. Casino games should be treated as entertainment rather than investment opportunities.