Poker Sample Size Calculator
This calculator is an educational estimate. It will not declare that 50,000 hands are universally enough.
How much evidence do you actually have?
Total hands are not opportunity counts.
What this calculator measures
It estimates how much opportunity volume a hand count might contain for a common, positional, or rare decision type.
- Overall data volume from the hand count you enter
- Opportunity volume, estimated or entered
- A qualitative reading of that opportunity count
Total hands vs opportunities
The file size is the starting count. The decision only exists in the subset of hands where that spot occurred.
Common vs rare decisions
Common preflop frequencies accumulate quickly. Rare later-street families accumulate slowly. The calculator’s illustrative rates exist only to show that gap.
Appears often
Appears rarely
How to interpret the result
Read opportunity volume first. Then read the band as an educational signal about evidence thickness — not as a pass/fail on the player.
- INSUFFICIENT / LOW
Treat the spot as thin. Do not promote it to a leak claim.
- MEDIUM
Useful only with a tight filter and the actual hands.
- HIGH ENOUGH TO INVESTIGATE
Enough opportunity volume to inspect the hands — not a verified leak.
What this calculator cannot tell you
It will not declare that 50,000 hands are universally enough, and it does not grade whether Hero is playing correctly.
- Whether a specific leak is verified
- GTO or strategic confidence
- That variance is solved
- That a database is universally reliable
Take the count
back to the database.
The calculator estimates evidence thickness. The review is where defined decisions get inspected.
REQUEST EARLY ACCESS · ALPHA IN PREPARATION
Educational estimate. Not a production confidence model.