Blackjack Basic Strategy Calculator

Blackjack basic strategy calculator quick answer

Enter your two cards and the dealer upcard, then set the dealer's soft-17 rule and double-after-split rule. This calculator returns the basic-strategy hit, stand, double, or split action for a four-to-eight-deck shoe. Check the table placard first because a different payout, deck count, or no-hole-card rule can need a different chart.

• S17 means the dealer stands on a soft 17. H17 means the dealer hits it.
• DAS means double after split. It changes a few small-pair decisions in the chart.
• The chart assumes a multi-deck shoe and does not include surrender.
• A 3:2 or 6:5 blackjack payout changes the cost of the game, but not the action cells shown here.

Use a blackjack strategy chart that matches the table

A blackjack chart only works when it matches the game. Start with the dealer's soft-17 rule. In an S17 game, the dealer must stand on A-6. In an H17 game, the dealer must take another card. That small rule changes the best play in a few hands, which is why this calculator asks for it before showing a result.

Next, check whether the table allows double after split. DAS matters when a small pair can turn into a strong doubling hand after you split it. If the rule is not allowed, the calculator changes the affected conditional split cells to a hit. It does not guess about re-splits, surrender, or a special side bet.

The tool is a starting-hand basic-strategy chart for a four-to-eight-deck shoe. It chooses between hit, stand, double, and split. It does not predict the next card, price a live dealer table, or promise a result on one hand. A long-run strategy decision and a short-run outcome are different things.

Read the game rules before you stake money. A 6:5 blackjack payout pays less than a 3:2 payout, and a European no-hole-card game handles a dealer blackjack differently from a game where the dealer checks immediately. Those rules can change the house edge or the correct chart. They are outside this simplified profile, so use a chart that names the same rules when they apply.

The clear practical use is rehearsal. Pick the table profile, enter a common hand, then read the highlighted chart cell and the short explanation. Once the action is familiar, check the dealer's published rules again. A strategy chart reduces avoidable mistakes; it cannot remove the casino edge or make a session predictable.