The hand you are describing is already a blackjack
A king and a queen together make 20, not 21. Each face card is worth ten, so the moment you see both on the felt you are one point short of the target. The confusion usually comes from mixing up the value of a single picture card with the value of a completed hand. A ten-valued card plus an ace makes 21, and that two-card 21 is what the game calls a blackjack. A king and a queen is a very strong 20, but it is not the same thing.
The joker does not belong in this conversation at all. Standard blackjack is played with decks that contain no jokers, so the card has no value in the game. If a joker ever appears at a blackjack table, something has gone wrong with the shoe or the deck is not a standard one.
How card values work
Blackjack reduces every card in the deck to a single number. Numbered cards count as their printed value: a 4 is worth four, a 7 is worth seven. The ten, jack, queen and king each count as ten. The ace is the only flexible card, worth either one or eleven, whichever gives the hand its best total without exceeding 21.
That flexibility is what makes the ace central to the game. A hand containing an ace counted as eleven is called a soft hand, because it can absorb a high card without busting. A hand without an ace, or with an ace forced down to one, is a hard hand. The distinction changes what the correct play is at several decision points.
| Card or hand type | Value in blackjack | What it means at the table |
|---|---|---|
| 2 through 9 | Printed value | Counted at face value |
| 10, jack, queen, king | 10 | All picture cards and the ten are equal |
| Ace | 1 or 11 | Chosen to give the best total without busting |
| Joker | Not used | Not present in a standard blackjack deck |
| Ace plus any 10-valued card | 21 (blackjack) | Two-card 21, usually paid at a premium |
Why a king and a queen make 20, not 21
Each face card is worth ten, and two tens make twenty. The reason some players remember this wrong is that blackjack pays its best rate on a two-card 21, and a hand of two picture cards looks dramatic enough to feel like it should be the jackpot hand. It is not. A king and a queen is a 20, which wins against most dealer hands but loses to any dealer 21 and pushes against a dealer 20.
The only way a hand of two ten-valued cards becomes 21 is if one of those cards is an ace, and an ace is not a ten-valued card. It is a flexible card that happens to be worth eleven in that combination. So a king and an ace is a blackjack. A king and a queen is a very good 20.
The sequence of a round, from buy-in to settlement
You sit down, place cash or chips on the table, and the dealer changes it into playing chips. The table minimum and maximum are printed on a small sign, usually to the dealer's right. You place a wager in the betting circle in front of your seat before any cards are dealt.
The dealer gives each player two cards face up, and takes two cards, one face up and one face down. From there the action moves around the table. Each player decides how to play their hand against the dealer's visible card. The dealer acts last, after every player has finished.
When all hands are settled, the dealer collects losing bets, pays winning bets, and the next round begins. Your chips stay on the table until you decide to leave, at which point the dealer exchanges them for larger denomination chips or cash at the cage.
Every decision point and what it means
Each decision in blackjack is a choice about how to respond to the dealer's upcard with the total you hold. The choices are not all available on every hand, and the table rules determine which ones apply.
- Stand means you are satisfied with your total and take no more cards.
- Hit means you want another card. You may hit as many times as you like until you stand or your total exceeds 21, which is a bust and an immediate loss.
- Double down lets you double your original wager in exchange for receiving exactly one more card. It is normally allowed only on your first two cards, and some tables restrict it to certain totals.
- Split is available when your first two cards are a pair. You separate them into two hands, place a second wager equal to the first, and play each hand independently.
- Surrender, where offered, lets you forfeit half your wager and end the hand before playing it out. It is a rule variant, not a universal option.
The dealer has no decisions. The dealer draws cards according to a fixed procedure printed on the table felt, typically drawing to 16 and standing on 17, with some tables requiring the dealer to hit a soft 17. That fixed procedure is part of the rule set, and it changes the correct play on some of your own hands.
The main bet and how its edge is built
The base wager in blackjack is the bet you place before the deal. It is the only bet most players make, and it is the bet on which the game's edge is calculated. The house edge on the base bet is not a fixed number printed on the table. It depends on the exact rule set in use: how many decks are in the shoe, whether the dealer stands or hits on soft 17, whether doubling after splitting is allowed, and whether surrender is offered.
Side bets are a different animal. Many tables offer optional wagers such as pairs, suited combinations, or a side bet on your first two cards plus the dealer's upcard. These bets settle independently of the main hand and almost always carry a materially higher house edge than the base game. They are optional, and the correct way to think about them is as a separate game with its own, worse arithmetic.
| Bet type | What it pays on | How its edge compares |
|---|---|---|
| Main bet | Your hand against the dealer's hand | Lowest edge at the table, varies by rule set |
| Pair side bet | Your first two cards forming a pair | Higher edge than the main bet |
| Suited side bet | Specific suited combinations | Higher edge than the main bet |
| 21+3 style side bet | Your two cards plus the dealer's upcard forming a poker-style hand | Higher edge than the main bet |
What a strategy chart is and is not
A basic strategy chart is a grid that tells you the mathematically best play for every combination of your hand total and the dealer's upcard under a specific set of rules. It is not a guarantee of winning, and it does not remove the house edge. It reduces the expected rate of loss by eliminating plays that cost more than the alternatives.
The chart you use must match the table you are sitting at. A chart built for a game where the dealer stands on soft 17 will give wrong advice at a table where the dealer hits soft 17. A chart built for a six-deck shoe will not be exactly right for a single-deck game with different doubling rules. The rule set is printed on the table or available from the dealer, and the chart must be derived from that exact rule set.
Procedural mistakes new players make
The first mistake is touching the cards. In most modern games the cards are dealt face up, and players never touch them. In face-down games, the rule is usually to handle cards with one hand and keep them above the table. The dealer will tell you the house rule if you ask before the first hand.
The second mistake is using hand signals inconsistently. The dealer and the surveillance cameras both read your gestures, not your words. A tap on the felt means hit, a wave means stand, and placing chips next to your original bet signals a double down. If you say one thing and gesture another, the gesture is what counts. Learn the signals for the table you are on before you play.
The third mistake is putting chips in the betting circle after the deal has started. That is how a player accidentally signals a double down or a split, and the dealer will hold you to it. Place your wager before the cards come out, and keep your hands away from the circle until the hand is settled.
FAQ
Does a joker count as 21 in blackjack?
No. A joker is not part of a standard blackjack deck and has no value in the game. If a joker appears, the deck is non-standard or the shoe has been set up incorrectly. The only cards that can make a two-card 21 are an ace and any ten-valued card.
Is a queen worth 10 or 11 in blackjack?
A queen is worth ten, the same as a jack, a king and a ten. No face card is ever worth eleven. The only card that can be counted as eleven is the ace, and only when doing so does not bust the hand.
What is the best hand in blackjack?
The best hand is a two-card 21, called a blackjack, made from an ace and any ten-valued card. It is usually paid at a higher rate than a 21 assembled from three or more cards. A 21 reached with three or more cards still wins against any lower dealer total, but it does not receive the premium payout.
Gamble responsibly. If you or someone you know has a gambling problem, call or text the helpline printed in the footer below for confidential, free support available 24/7, or visit www.ncpgambling.org for resources and help.
Play responsibly
Gambling should be treated as paid entertainment, never as a way to earn income or recover losses. 1-800-MY-RESET (1-800-697-3738)
18+ or 21+ depending on where you are; follow the minimum age that applies to you.
This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.