Blackjack has the best odds in the casino — but only if you know the rules. This guide covers everything: goal, card values, dealer rules, and advanced options like doubling and splitting. Master these rules, and you're ready to play.
📋 In this guide
🎯 Goal of blackjack
Your goal is simple: beat the dealer's hand. You don't compete against other players — only the dealer. You win if:
- Your hand total is closer to 21 than the dealer's, without exceeding 21.
- The dealer busts (goes over 21).
- You get a blackjack (an Ace + 10-value card) and the dealer does not.
If you exceed 21, you bust and lose immediately — even if the dealer later busts. If your hand equals the dealer's, it's a push (tie) and you keep your bet.
💡 Key insight: You don't need to get 21 to win. You just need a higher total than the dealer, or for the dealer to bust. Learn basic strategy to maximize your odds.
🃏 Card values in blackjack
Cards have fixed values in blackjack — no suits matter. Here's what each card is worth:
| Card(s) | Value | Notes |
|---|---|---|
| 2–10 | Face value (2=2, 3=3, ... 10=10) | Number cards are worth their number. |
| Jack, Queen, King | 10 | All face cards are 10 — no difference. |
| Ace | 1 or 11 | Counted to benefit the hand. An Ace + 10 is blackjack. |
Example hands:
- 10 + 7 = 17 (hard 17 — no Ace).
- Ace + 6 = 7 or 17 (soft 17 — Ace counts as 11).
- Ace + 10 = blackjack (21 with two cards).
- Ace + 7 + 4 = 12 (Ace counts as 1 to avoid bust).
💡 Ace flexibility: Soft hands (with an Ace as 11) are powerful — you can hit without busting. Learn more about soft vs hard hands.
✋ Basic moves: Hit and Stand
After your first two cards, you choose how to play your hand. The two fundamental options:
- Hit — Take another card. You can hit multiple times until you stand or bust.
- Stand — Keep your current hand and end your turn.
You signal your choice with hand gestures (to avoid confusion with camera surveillance):
- Hit: Tap the table or scratch the felt toward you.
- Stand: Wave your hand horizontally, palm down.
If you bust (exceed 21), you lose immediately — your cards are collected, and your bet is taken.
💰 Double down
Doubling down lets you double your original bet in exchange for receiving exactly one more card. After doubling, you cannot hit again — you stand with that one card.
When to double: Usually when you have a strong advantage, such as:
- 11 against any dealer upcard (except Ace in some games).
- 10 against dealer 2–9.
- 9 against dealer 3–6 (in some games).
- Soft hands like Ace+2 through Ace+7 against certain dealer cards.
🎯 Strategy tip: Correct doubling is a powerful tool. Use our interactive blackjack trainer to practice when to double.
🔀 Splitting pairs
If your first two cards have the same value (e.g., 8–8, J–Q, Ace–Ace), you can split them into two separate hands. You place an additional bet equal to your original, and each hand gets a second card. You then play each hand independently.
Key split rules:
- You can usually split up to 3 times (creating 4 hands).
- After splitting Aces, you typically receive only one card per Ace and cannot hit (varies by casino).
- Some games allow re-splitting (splitting again if you get another pair).
When to split:
- ✓ ALWAYS Aces and 8s
- ✗ NEVER 10s, 5s, or 4s
- Split 2s, 3s, 6s, 7s, 9s based on dealer's upcard (generally against dealer 2–7).
Full splitting strategy depends on the dealer's upcard.
🛡️ Insurance
When the dealer's upcard is an Ace, the dealer offers insurance. This is a side bet (up to half your original bet) that pays 2:1 if the dealer has blackjack.
Example: Your bet is $20. You take insurance for $10. If the dealer has blackjack, you lose your $20 bet but win $20 on insurance ($10 bet pays $20) — you break even. If the dealer doesn't have blackjack, you lose the $10 insurance and continue playing.
⚠️ Expert warning: Insurance is a bad bet for basic strategy players. The odds favor the house. Only card counters use insurance when they know the deck is rich in 10s. Learn more about insurance.
👤 Dealer rules
Dealers don't make choices — they follow fixed rules. After all players finish, the dealer reveals their hole card and plays their hand according to these rules:
- Hit on 16 or less — Dealer must take another card.
- Stand on 17 or more — Dealer stops.
- Soft 17 rule: Some casinos require dealers to hit on soft 17 (Ace+6). This slightly increases the house edge.
Dealers never double, split, or surrender. They play their hand automatically based on these rules.
Complete dealer rules guide explains how dealer actions affect your strategy.
💵 Payouts
- Winning hand: 1:1 (even money) — you win the same amount as your bet.
- Blackjack: 3:2 — if you have an Ace + 10 and the dealer doesn't, you win 1.5× your bet. (Example: $10 bet pays $15).
- Insurance: 2:1 — side bet pays double if dealer has blackjack.
- Push (tie): No win or loss — you keep your bet.
⚠️ Some casinos pay blackjack at 6:5 instead of 3:2 — this increases the house edge significantly. Avoid 6:5 blackjack tables.
🌍 Common rule variations
Different casinos have slightly different rules. These affect your strategy and the house edge:
| Variation | Effect | Strategy impact |
|---|---|---|
| Dealer hits soft 17 | Increases house edge ~0.2% | Slightly more aggressive doubling |
| Double after split allowed | Decreases house edge ~0.1% | More opportunities to double |
| Resplit Aces allowed | Decreases house edge ~0.03% | Rare, but advantageous |
| Surrender allowed | Decreases house edge ~0.07% | Can fold bad hands for half bet |
| Number of decks | More decks = higher edge | Single deck is best, but rare |
❓ Frequently Asked Questions
Get answers to the most common questions about blackjack rules, strategy, and dealer rules.
View all 25+ Blackjack FAQs →🃏 Practice blackjack for free
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