Blackjack Calculators & Tools

Free, no-signup blackjack math tools: an optimal-move calculator, a session simulator, a house-edge calculator, a payout calculator, and a live basic-strategy chart — all driven by the same rule-set-aware engine. Looking for the move calculator itself? Open the blackjack calculator.

Blackjack Calculator

Enter your hand and the dealer upcard, get the mathematically optimal move — plus a dynamically generated strategy chart for your exact rules.

Blackjack Simulator

Play thousands of simulated hands under any rule set and see your realized edge vs the theoretical house edge.

House Edge Calculator

See exactly how deck count, dealer soft-17 rules, double-after-split, surrender, and payout ratio each move the house edge.

Payout Calculator

Bet size and hand type in, exact payout out — including the real cost of 6:5 vs 3:2 blackjack payouts.

Basic Strategy Chart

The full hit/stand/double/split grid, regenerated live for your deck count, soft-17, DAS and surrender rules.

Rule Variants

Vegas Strip, Atlantic City, European, single- and double-deck — how each rule set shifts the house edge.