Basic Strategy Calculator
Get instant optimal play recommendations for any blackjack hand combination
What should I do with Hard 5 vs Dealer 5?
Optimal Play: Hit
When you have Hard 5 and the dealer shows 5, the mathematically optimal play according to basic strategy is to hit. This means you should take another card to improve your hand.
Why Hit?
With a total of 5, you cannot bust by taking another card, making hitting risk-free. The mathematical expectation favors taking another card in this situation.
Expected Value
Hitting in this situation gives you the highest expected return compared to other available actions. The probability of improving your hand outweighs the risk of busting.
Alternative Actions
This is the only recommended action for this hand regardless of dealer upcard.
How to Use the Basic Strategy Calculator
Choose Hand Type
Select whether you have a hard hand (no Ace or Ace counted as 1), soft hand (Ace counted as 11), or a pair.
Select Your Hand
Click on the button that represents your hand total or card combination.
Choose Dealer's Upcard
Select the dealer's visible card to complete the scenario.
Get Recommendation
Click "Get Recommendation" to see the optimal play, explanation, and expected value.
Calculator Features
Instant Results
Get immediate optimal play recommendations for any hand combination.
Detailed Explanations
Understand why each decision is optimal with mathematical reasoning.
Expected Value
See the mathematical expectation for each possible action.
Mobile Optimized
Works perfectly on all devices with touch-friendly interface.
Basic Strategy Fundamentals
Basic strategy is the mathematically optimal way to play every hand in blackjack. It's based on computer simulations of millions of hands and reduces the house edge to its minimum. This calculator implements perfect basic strategy for standard rules: 6 decks, dealer hits soft 17, double on any two cards, double after split allowed, late surrender. See the full basic strategy chart or learn the reasoning in the basic strategy guide.
Action Abbreviations
- H Hit
- Take another card
- S Stand
- Keep your current hand
- D Double
- Double your bet and take one card
- P Split
- Separate pairs into two hands
- R Surrender
- Forfeit half your bet