Poker Odds Calculator

Poker odds calculators determine the probability of winning a hand or completing a drawing hand using combinatorics to count winning outcomes relative to total possible outcomes in a deck. Use this calculator for accurate, instant results.

The calculator uses the standard published formula for poker odds. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Preflop equity = percentage of hands won across all simulated run-outs. Each step in the calculation is shown so you can verify the result manually.