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This may seem strange, but the concept of house edge remains something abstract for a long time for many players. They do not understand what it means, where it comes from and how it is calculated. If you belong to this category of gamblers, read the article to eliminate this gap in your knowledge once and for all. Let your approach to gambling become more scientific.

Basic concepts of the house edge

There are multiple definitions of the house edge. For example, this:

The house edge is the difference between a real chance of winning in a particular game and the payoff the casino makes according to established rules.

This means the casino pays less than it should, based on the probability of winning. Let's look at a specific example. Roulette will be the most convenient.

  • European roulette features 37 numbers from 1 to 36 and zero. However, if you bet a dollar on some number and win, you get only 35$, although the real odds are 36:1.
  • In the case of American roulette, the situation for a player is even worse. It features 37 numbers (add double zero), but the payoff from one number is still the same 35$ if you bet 1$. In other words, if you cover the entire field with the same-value chips, you are guaranteed to lose 1$ at European roulette and 2$ at American.

Likewise, if you bet on red/black, odd/even, and other even chances at roulette, the payout is 1:1, but in case of zero, all bets like these will lose (except for some special rules in some casinos). It also guarantees an advantage to the casino.

This in no way can be considered cheating.

The casino is a business, and the purpose of the house edge is to make a profit. Otherwise, gambling houses would not exist.

House edge of different games

Various games and even different bets feature a house edge, although there are rare exceptions (eg, craps). Some video poker variations may bring an advantage to the player if you play with the perfect strategy and make no mistakes.

In blackjack, the quality of the game directly affects the house edge. Professionals who have mastered card counting can achieve positive results in the long term of the game. That's why the casinos will try to ban such players.

House edge of each game is no secret, but in most cases, these figures are true only when you perfectly stick to the optimal strategy. Therefore, if you are still haven't decided which casino game is the best for you, don't be lazy to spend time and study statistics. Perhaps, you will radically change your preferences.

  • Let's just say, playing keno that features, on average, a house edge over 20% is not profitable.
  • There is also no point in playing American roulette with a standard and a double zero if you can try your luck on European roulette.
  • In games such as craps, all you need is to study statistics for each type of bet because their profitability for a player can vary a lot.

Remember, even a relatively stable casino game is possible only if you study the selected game's statistics and nuances.


Let's discuss the subject in the comments.

  • Which casino games do you prefer?
  • How do you manage the house edge? Please share your secrets.

In conclusion, we would like to recommend Casinoz readers several honest casinos with great reviews from real customers. You can trust them.

Frequently asked Questions

What is the house edge?

It is a part of the player's total bets the casino is guaranteed to win over an endlessly long period of time.

Does the casino have an advantage over the player in every single game?

In the great majority. Games without house edge are very rare.

How high can the house edge be?

It can vary between 0.01% and few tens of a percentage.

Which games feature the lowest house edge?

Many blackjack and video pokers may feature few tens of a percentage.

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