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Blackjack IndexFree Online Blackjack Simulator & Strategy Lab

True count · Transparent calculator

Blackjack true count calculator.

Enter the public running count, estimate the decks remaining, and inspect each step of the conversion. The selected rounding policy stays visible.

Running count
−99 — +99
Decks remaining
0.25 — 8
Rounding policy
4
Formula
RC ÷ D
Transparent formula · Public inputs

True count workbench

KO is unbalanced; this standard balanced true-count formula is unavailable for it.

Rounding policy

Normalized result

TC+1.71
RC+6
Deck estimate3.5
TC1.71
Interpretation

Positive count

Calculation evidence

Formula
running count ÷ decks remaining
Rounding policy
The selected deck estimate and rounding policy remain part of the result.

This calculator performs only the disclosed count conversion. It does not estimate an advantage, bet size, or outcome.