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Blackjack Basic Strategy Advisor - Online Chart & Action Guide

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Blackjack Basic Strategy Advisor

Instantly find the optimal play for any hand — based on standard multi-deck basic strategy.

Select your hand and the dealer's upcard above
Complete Strategy Charts
Your Hand 23456 78910A
Your Hand 23456 78910A
Your Pair 23456 78910A
H = Hit S = Stand D = Double SP = Split SU = Surrender

* Based on standard multi-deck strategy (dealer stands on soft 17). Surrender is late surrender where available.

Key Rules to Remember
Always Split
Aces (A,A) and Eights (8,8) — no exceptions.
Never Split
Tens (10,10) and Fives (5,5). Play 5,5 as a hard 10.
Stand on 17+
Always stand on any hard 17 or higher, regardless of the dealer's upcard.
Frequently Asked Questions

Basic Strategy is a mathematically proven set of rules that tells you the optimal action (Hit, Stand, Double, Split, or Surrender) for every possible combination of your hand and the dealer's upcard. It minimizes the house edge to as low as 0.5% under standard rules, making blackjack one of the most player-friendly casino games when played correctly.

A Hard total is any hand without an Ace, or where the Ace must count as 1 to avoid busting (e.g., Ace-7-9 is a hard 17). A Soft total contains an Ace counted as 11, giving you flexibility — you cannot bust by taking one more card (e.g., Ace-6 is Soft 17). Soft hands are notated as "A,2" through "A,9" on our charts.

Doubling down is most profitable when you have a strong chance of winning with exactly one more card. Key doubling situations: Hard 11 against any dealer upcard except Ace; Hard 10 against dealer 2-9; Hard 9 against dealer 3-6; and various soft hands (Soft 13-18) against dealer 4-6. Always check the chart for the exact recommendation.

Aces (A,A) and Eights (8,8) should always be split regardless of the dealer's upcard. Splitting Aces gives you two chances at a natural blackjack, while splitting Eights turns a weak 16 into two potentially strong hands. Conversely, never split Tens (10,10) or Fives (5,5) — a pair of 10s is already an excellent 20, and a pair of 5s should be played as a hard 10 (usually doubled).

Yes. The charts on this page assume multi-deck games where the dealer stands on Soft 17 (the most common ruleset). Variations like single-deck games, dealer hits Soft 17, no double after split, or European no-hole-card rules can shift certain borderline decisions. Always confirm the specific house rules before playing and adjust accordingly.

Surrender allows you to forfeit your hand and lose only half your bet. Late surrender (after the dealer checks for blackjack) is available in some casinos. The key surrender decisions: surrender Hard 16 against dealer 9, 10, or Ace; and surrender Hard 15 against dealer 10. Surrendering these unfavorable hands saves money in the long run.

Absolutely. Most online casinos have no restrictions against using a basic strategy reference while playing. In fact, many experienced players keep a strategy chart open on a second screen or mobile device. Using perfect basic strategy is simply smart play — it's not cheating; it's mathematics. This tool is designed to be your quick-reference companion during online play.

Without basic strategy, the average player faces a house edge of 2% to 4% due to common mistakes. By following perfect basic strategy, the house edge drops to approximately 0.4% to 0.6% under standard multi-deck rules (dealer stands on Soft 17, double after split allowed). This means for every $100 wagered, the expected loss is only about 40-60 cents over the long term.

This tool is for educational and reference purposes only. Strategy assumes standard multi-deck rules with dealer standing on Soft 17. Always verify specific house rules. Gambling involves risk — please play responsibly.

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