Blackjack Basics: Rules, Terms and How a Hand Plays Out

Blackjack is one of the most widely known card games in the world, and also one of the simplest to understand on the surface. This article explains the rules and vocabulary for readers who are curious about how the game works. It is written for adults aged 18 and over, or the legal age where you live, and is purely informational. It does not recommend that anyone play, and no game or strategy can guarantee a win.

The goal of the game

Each player competes against the dealer, not against other players. The aim is to have a hand whose total is closer to 21 than the dealer's total without going over 21. Going over is called busting, and a player who busts loses the hand immediately.

Card values

• Cards from two to ten are worth their face value.
• Jacks, queens and kings are each worth ten.
• An ace is worth either one or eleven, whichever helps the hand more.

A hand that includes an ace counted as eleven is called a soft hand, because it cannot bust with the next card. A hand without such an ace is called hard.

How a round begins

After bets are placed, the dealer gives two cards to each player and two to themselves, with one dealer card face up. If a player's first two cards are an ace and a ten-value card, that is a blackjack, which usually beats any other hand except a dealer blackjack. Many tables pay blackjack at 3 to 2, although some tables pay less, which is worse for the player. Always read the rules posted at a table.

The player's choices

A player acts first, and the common options are:

• Hit: take another card.
• Stand: keep the current total and end your turn.
• Double down: double the original bet in exchange for receiving exactly one more card, where the rules allow it.
• Split: if the first two cards have the same value, separate them into two hands, each with its own bet.
• Insurance: a side bet offered when the dealer shows an ace. Many strategy guides advise against it, because it generally adds to the house advantage.

How the dealer plays

The dealer has no choices. The usual rule is that the dealer must draw on 16 or less and stand on 17 or more. Some tables require the dealer to hit on a soft 17, and that small difference matters because it increases the house edge. If both have the same total, the hand is a push, and the bet is returned.

What basic strategy can and cannot do

Basic strategy is a set of calculated decisions about whether to hit, stand, double or split in each situation. Following it can reduce the house edge compared with random play, but it does not remove it or make winning certain. Short-term results are driven by luck, and a few hands cannot show whether a strategy works. For more on why the casino always has an edge, read House Edge and Odds Explained.

Knowing your limits

Because results are uncertain, any money spent on gambling should be money you can afford to lose and treat as the price of entertainment. Our guide on Setting Limits and Playing Responsibly describes practical steps. If you want some background on the cards themselves, see A Short History of Playing Cards.

Frequently asked questions

Is blackjack a game of skill or luck?

It combines both. Decisions can influence the average outcome, but each hand is determined by random cards, and the house retains an advantage overall.

Can card counting guarantee a win?

No. Counting is difficult, offers no guarantee, and many venues forbid it and can ask players to leave. It is not a reliable approach for ordinary players.

What does a push mean?

A push is a tie between player and dealer. The bet is returned without any gain or loss.