Free Tool

Blackjack Basic Strategy Chart

The mathematically correct play for every hand — and it adapts to your table. Toggle the rules below and the chart recalculates. Assumes a 4–8 deck shoe with 3:2 blackjack payouts.

Dealer 17
Double after split
Surrender

Hard totals

Any hand without an ace counted as 11, and no pair. Your total down the side, dealer's upcard across the top.

Soft totals

Hands where an ace still counts as 11. Soft hands can't bust with one card, so the math often says be aggressive.

Pairs

Two cards of the same rank. Whether splitting is right depends heavily on whether you can double after the split.

Chart values are standard multi-deck (4–8 deck) basic strategy. Single- and double-deck games shift a handful of plays — the BlackJackal app recomputes the correct lines for any deck count, penetration, and payout.

How to actually learn this chart

A chart tells you what to do. It can't tell you why — and plays you don't understand are the plays you abandon at a real table, right after a couple of bad outcomes.

Every cell above is the action with the highest expected value (EV): the option that wins the most, or loses the least, over the long run. Some calls are landslides. Others, like 16 vs 10, are decided by less than a cent per dollar — which is exactly why they feel wrong. We broke down the math on 16 vs 10 here.

BlackJackal drills these decisions with the EV of every option on screen, tracks the exact hands you misplay, and ranks your leaks by what they cost you.

Charts Tell You What. We Teach You Why.

Turn this chart into instinct.

Free to train, 21 hands a day. One lifetime unlock, no subscription, ever.

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