Free Poker Calculators and Charts

Everything runs in your browser, with no sign-up and no payment. Pick a tool, then practise the same decisions at the table in the trainer.

• Pot Odds Calculator

  Calculate pot odds percentages, required equity thresholds, and drawing out probabilities across flop and turn in Texas Hold'em.

• Equity Calculator

  Simulate exact showdown win percentages, ties, and equities between two hands preflop, flop, turn, or river using Monte Carlo calculations (20,000 runs).

• Preflop Ranges

  Interactive 13x13 starting hand matrix and Game Theory Optimal (GTO) open-raising ranges for 100bb deep 6-max and 9-max No-Limit Texas Hold'em cash games.

• ICM Calculator

  Enter up to 9 stacks and the prize payouts: the Malmuth-Harville model shows what each stack is worth in money and its share of the prize pool.

• MDF Calculator

  Enter the pot and your opponent’s bet to get minimum defense frequency (MDF), the fold rate that makes a bluff break even (alpha) and the balanced bluff share of a betting range.

• SPR Calculator

  Enter the effective stack and the flop pot: the calculator shows SPR, your decision zone (commit, middle, deep) and which hands play well there.

• Fold Equity Calculator

  Enter the pot, the bet size and your equity when called: the calculator shows the fold rate that pays for the bluff and plots the EV of the bet across opponent fold frequencies.

• Combos Calculator

  Pick a hand and mark the cards you know (yours and the board): see the exact number of combos left and its share of all 1326 starting hands.

• Bankroll & Risk of Ruin

  Enter your bankroll in big blinds, win rate and standard deviation: get the probability of ruin and the bankroll needed for a target risk (1%, 5%, 10%).

• Poker Hand Rankings

  Every poker hand from strongest to weakest: an example, a short description and the chance of making it from seven cards (two yours, five on the board).