Blackjack Hand Calculator
Pick your two cards and the dealer's up-card. The calculator runs the same exact odds engine as our trainer — dealer outcome distribution, optimal continuation after hitting, the works — and shows you what every play is really worth.
How to read the results
- Avg profit per $1 is the long-run expected value of each play at your chosen rules — the number basic strategy maximizes. Doubles and splits already account for the extra money you put up.
- Win % is how often the play wins the hand. It is not the deciding number: doubling often matches hit's win rate with twice the bet, and that's exactly why the book prefers it.
- The engine assumes the standard US game: dealer peeks for blackjack, double on any two cards, double after split allowed, split aces get one card. Splits are valued as two one-hand plays (no resplit), the standard approximation.
Frequently asked questions
Why does the answer change with the number of decks?
Fewer decks make card removal matter more — your own cards shift the remaining composition harder. That's why single-deck charts differ in a few cells and why the calculator lets you set 1–8 decks.
What's the difference between H17 and S17 here?
H17 means the dealer hits soft 17, which makes the dealer slightly stronger and changes a few close plays (11 vs A, A-7 vs 2, A-8 vs 6). The soft 17 guide covers all three.
Are these numbers exact or simulated?
Computed, not simulated — the dealer distribution is solved by exact recursion over the remaining-shoe composition, and player actions are evaluated against it. The only approximation is the standard one for splits (two one-hand plays, no resplit).