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Tools
Exact-math instruments for the decisions you make every hand. No solver guesswork — definitional computation, computed in your browser.
The calculators
- 01
Range Analyzer
Build a range on the 13×13 grid, set a board, and see how it connects — every made hand and draw, by combo and percentage.
Live - 02
Equity Calculator
Two hands, any board — exact win odds by enumerating every runout. Which hand wins, and by how much.
Live - 03
Pot Odds Calculator
Required equity, the price you're getting, and whether your draw is a call.
Live - 04
Implied Odds Calculator
How much more you must win on later streets when the direct price falls short.
Live - 05
Bet-Sizing Calculator
MDF, the equity to defend, and the balanced value-to-bluff ratio at any size.
Live - 06
Variance & Risk of Ruin
Confidence intervals on your winrate, swing size, and the odds a downswing breaks you.
Live - 07
Bankroll Calculator
The buy-ins a given winrate requires to keep risk of ruin under your chosen line.
Live
Every tool here runs on definitional math — pot odds, indifference, minimum-defense frequency, the gambler's-ruin formula, exhaustive enumeration. The numbers are exact for the inputs you give, not a solver's estimate and not a sample.