Hi-Lo True Count Conversion
Why the running count alone isn't enough — and how to fix it in your head.
⚠️ This is a Hi-Lo skill only
KO is an unbalanced system that doesn't require true count conversion — that's one of its biggest advantages over Hi-Lo. KO's running count is calibrated to reflect advantage directly. If you're using KO, skip this page.
The Problem with Running Count
Imagine two scenarios: your running count is +10 with 5 decks remaining vs. +10 with 1 deck remaining. Same number — radically different advantage. With 5 decks left, +10 is only a modest edge. With 1 deck left, +10 is an enormous edge.
The running count doesn't account for how many cards are left to be played. The true count normalizes this.
The Formula
True Count = Running Count ÷ Decks Remaining
Round to the nearest integer. Always use decks, not cards.
Examples
Estimating Decks Remaining
You need to visually estimate decks left in the discard tray. This takes practice — but here's the shortcut:
Discard tray is empty or barely started
→ ~6 decks (full shoe) remaining
About ¼ of shoe discarded
→ ~4.5 decks remaining
About ½ of shoe discarded
→ ~3 decks remaining
About ¾ of shoe discarded
→ ~1.5 decks remaining
Almost at the cut card
→ ~0.5–1 deck remaining
Why KO Skips This Step
KO's unbalanced system is calibrated so the running count itself reflects true advantage directly. No division needed. This is the biggest practical advantage KO has over Hi-Lo — less mental overhead means fewer errors under real casino conditions.
Penetration Multiplies Everything
True count conversion is only useful when the shoe has been dealt deeply enough for the count to reach meaningful levels. At 40% penetration, TC rarely moves. At 75%+ penetration, TC becomes highly actionable.
Learn about Deck Penetration →