Blackjack Strategy Calculator
Calculate optimal decisions for any blackjack hand using basic strategy. Our free blackjack strategy calculator tells you whether to hit, stand, double, split, or surrender based on your hand and the dealer's up card. Enter your cards and dealer's card to see the mathematically optimal play. No registration required.
Use the free calculator below to find the optimal blackjack decision.
Blackjack Strategy Calculator
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How It Works
Blackjack basic strategy is a mathematically optimal way to play every possible hand combination. Following basic strategy minimizes the house edge and maximizes your chances of winning.
How Blackjack Strategy Is Determined:
Basic strategy is calculated using probability theory and computer simulations. For each possible hand and dealer up card combination, the strategy determines the action (hit, stand, double, split, or surrender) that gives the best expected value.
Example:
If you have 16 and the dealer shows 10:
- Basic strategy recommends hit (even though you might bust)
- This is because standing gives you a lower expected value than hitting
- The dealer has a high chance of having 20, so you need to improve your hand
Blackjack Strategy Calculator Examples
Real-world examples of blackjack strategy decisions using actual hand scenarios.
Example 1: Hard 16 vs Dealer 10
Example 2: Pair of 8s vs Dealer 10
Example 3: Soft 18 vs Dealer 9
How to Use the Blackjack Strategy Calculator
Enter Your Hand
Enter your cards separated by comma (e.g., A,10 for Ace and 10, or 8,9 for 8 and 9).
Enter Dealer's Card
Enter the dealer's visible up card (A, 2-10, J, Q, or K).
Select Game Type
Select the blackjack game rules (dealer stands on 17, hits soft 17, etc.).
View Optimal Decision
The calculator shows the mathematically optimal play: hit, stand, double, split, or surrender.
How the Blackjack Strategy Calculator Works
Blackjack basic strategy is based on probability calculations that determine the action with the highest expected value for each hand combination.
Strategy Principles:
- Hard hands: Hands without an Ace or with an Ace counted as 1
- Soft hands: Hands with an Ace counted as 11
- Pairs: Two cards of the same rank
Common Strategy Rules:
- Always split Aces and 8s
- Never split 10s, 5s, or 4s
- Double down on 11 vs dealer 2-10
- Stand on hard 17 or higher
- Hit on hard 11 or lower
Frequently Asked Questions
Blackjack basic strategy is a mathematically optimal way to play every possible hand combination. It minimizes the house edge and maximizes your chances of winning.
No, basic strategy doesn't guarantee wins, but it gives you the best mathematical chance of winning. It minimizes losses and maximizes expected value over the long term.
A hard hand is one without an Ace or with an Ace counted as 1. A soft hand has an Ace counted as 11. Soft hands are more flexible because the Ace can be counted as 1 if needed.
Yes, following basic strategy gives you the best mathematical chance of winning. Deviating from basic strategy increases the house edge and reduces your expected value.
Yes, our blackjack strategy calculator is completely free to use. No registration required, no hidden fees.