Blackjack Card Counting Practice Calculator
Card counting systems like Hi-Lo track a running count as cards are dealt, but the true count adjusts for how many decks remain in the shoe. This tool is for educational study of counting systems only. Enter your running count and estimated decks remaining to calculate the true count.
About this calculator
Convert a blackjack running count into a true count by dividing by the estimated number of decks remaining, for educational card-counting practice.
Frequently Asked Questions
What is the difference between running count and true count?
The running count is a raw tally of high versus low cards seen so far. The true count divides that by the number of decks remaining to normalize the count regardless of how many cards are left in the shoe.
Is this tool for real casino play?
No, this is purely an educational reference for studying how card-counting systems work mathematically. It is not intended to assist with gambling or wagering decisions.
How do I estimate decks remaining?
Divide the estimated number of unseen cards by 52. Many practice drills use a fixed shoe size, such as 6 or 8 decks, and estimate based on how much of the shoe has been dealt.