Poker Helper Calculator

About Poker Helper Calculator

Standalone, manual-entry poker math tools — what they are, how the math is built and checked, and what this site deliberately doesn't do.

What this site is

Poker Helper Calculator is a set of calculators for hand equity, pot/implied odds, outs, ranges, and bankroll sizing, plus a small home-game companion toolkit (opponent notes, table selection, session tracking, hand log). You enter your own cards and numbers; the calculator does the arithmetic. There is no live-table connection, no screen-scraping, no automation, and no real-time assistance of any kind — every result requires you to type in the inputs yourself.

How the math is built and checked

The hand evaluator, Monte Carlo equity engine, range-notation parser, and odds formulas are ported from a reference implementation and verified with three layers of automated tests before any calculator ships: exact-match assertions against known poker facts (e.g. a pair of aces beats a pair of kings), an exhaustive parity check running 100,000 random hands through the evaluator to catch subtle tie-break bugs, and statistical parity checks confirming Monte Carlo results converge within tolerance of the reference numbers. Every formula on this site is deterministic arithmetic given its inputs — not a model, not an estimate dressed up as one.

What this site deliberately avoids

No "AI" framing anywhere on this site, because that language implies live or automated table assistance, which this is not. No real-money-site connection of any kind. On real-money sites, using any tool mid-hand — including this one — can violate the site's terms of service regardless of automation; this site is positioned as a pre-session study tool and post-session review tool for that context, and a fully live-usable companion for home games where no such terms apply.

Who runs this site

Poker Helper Calculator is operated by Gesmine-Invest Limited (UK Company No. 14120136), registered at Hardy House, 269 Poynders Gardens, London, SW4 8PQ.

Want to see the math in action? Try the equity calculator.