Free Blackjack Basic Strategy Calculator

Never make a wrong decision. Our free Blackjack Calculator determines the optimal move for any hand based on perfect basic strategy. Instantly learn when to Hit, Stand, Double Down, or Split.

Use the calculator in real-time, just like at a live casino. Select the cards and get the optimal move instantly!

Your Hand

Dealer's Up Card

How to Use Our Blackjack Calculator

Using the calculator is simple and intuitive. Follow these steps to get the correct basic strategy move in seconds:

  1. Select Your Cards: Click the card ranks in the "Your Hand" section to add them to your hand. You need to select at least two cards.
  2. Select Dealer's Card: Click the card rank in the "Dealer's Up Card" section that matches what the dealer is showing.
  3. Calculate: Click the "Calculate Decision" button.
  4. Get the Optimal Move: The calculator will instantly display the best move (Hit, Stand, Double, or Split) along with an explanation of why it's the correct play.

You can remove a card from your hand by clicking on it, or reset the entire board with the "Reset" button.

Why Use a Blackjack Calculator?

Blackjack is not just a game of luck; it's a game of skill. Every hand has one mathematically optimal play. Making this correct play consistently is what's known as "basic strategy," and it's the foundation of lowering the house edge and becoming a winning player.

  • Eliminate Guesswork: Stop wondering what to do with a 16 against a dealer's 10. Get the proven, correct answer every time.
  • Learn Basic Strategy Faster: By using the calculator, you actively train your brain to recognize patterns and memorize the correct plays.
  • Build Confidence: Practice with the calculator so you can sit down at a real table with the confidence that you're making the best possible decisions.
  • Save Money: Every mistake in blackjack costs you money in the long run. Our calculator helps you avoid those costly errors.

Take Your Game to the Next Level

This calculator is just the beginning. Sign up for free to unlock our complete training suite: hyper-realistic simulators, card counting drills, and advanced analytics to turn you into an expert player.

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Blackjack Calculator FAQ

Is using a blackjack calculator cheating?

No. Using a tool like this to learn and practice basic strategy at home is not cheating. However, using any external device, including this calculator on your phone, at a live casino table is strictly prohibited. This tool is designed for home training to help you memorize basic strategy, so you can apply it from memory.

Does this calculator work for any blackjack game?

This calculator is based on the most common blackjack rules (e.g., dealer stands on soft 17, double after split allowed). Basic strategy can vary slightly with different rules. For customized practice, our full Blackjack Simulator allows you to configure rules to match the exact game you're playing.

What is basic strategy?

Basic strategy is a mathematically proven set of rules that dictates the optimal play for every possible hand in blackjack against any dealer up-card. It was developed by running millions of computer simulations to find the most profitable decision (Hit, Stand, Double, Split) in any situation. Following basic strategy dramatically reduces the casino's house edge.

Is basic strategy enough to win at blackjack?

While perfect basic strategy minimizes the house edge to less than 0.5%, it doesn't guarantee long-term winnings. To gain a real advantage over the casino, players must learn card counting. This calculator perfects your basic strategy, which is the essential first step before advancing to card counting techniques.