The house gets this advantage by the dealer being the last player to act. In most casino games of blackjack, the house advantage (the dealer advantage) is ~ 8%.

You can read over these blackjack odds charts to help understand the logistics behind blackjack. It's also important to understand blackjack odds such as the odds of hitting a 10 or the odds of being dealt a blackjack. It's crucial to know how the casino gains its edge and how it helps them win. To fully understand the game of blackjack, you must understand and master blackjack odds. US Players and Credit Card Deposits Accepted! Blackjack Odds Blackjack Probability and Blackjack Odds