Blackjack Strategy Calculator
Get optimal play decisions based on basic strategy for any blackjack hand.
Calculator developed by David Torres, Professional Casino Mathematician
Your Hand
Select your hand total and the dealer's upcard
Basic Strategy Guide
Basic strategy is the mathematically optimal way to play every hand in blackjack. Following basic strategy reduces the house edge to around 0.5%.
Key Principles:
- Always split Aces and 8s
- Never split 10s or 5s
- Double on 11 against dealer 2-10
- Stand on hard 17 or higher
- Hit soft 17 or lower