Poker calculators
The math you should be doing away from the table. Variance, ICM, push-fold, equity, pot odds, bankroll, Kelly, EV. Free, fast, and yours.
Cash
Poker Variance Calculator
Simulate cash-game variance across any sample size. Plug in your win rate (bb/100), standard deviation, and number of hands, get downswing risk, confidence intervals and a Monte Carlo distribution.
Range vs Range Equity Calculator
Drop in two ranges in standard notation (e.g. JJ+, AQs+) and get exact equity. Board runout support. Calibrated to PokerStove output.
Pot Odds & Implied Odds Calculator
Pot odds, required equity, implied odds, and break-even fold equity in one tool. Inputs: pot, bet, effective stack, expected future bets.
EV Calculator
Expected value for any decision. Build a tree of outcomes with probability and dollar payoff, get EV in $ and bb. Useful for spot analysis off-table.
Tournaments
Tournament Variance Calculator
Model MTT ROI variance over N tournaments. Inputs: average buy-in, ROI%, field size, sample size. Outputs: 95% CI on lifetime profit, probability of N-buy-in downswing, breakeven sample size.
ICM Deal Calculator
Solve final-table chop equity using the Independent Chip Model. Enter chip stacks and the payout structure, get each player's ICM dollar equity to the cent.
Pushbot / Push-Fold Trainer
Train short-stack push-fold ranges from any position at 1-20bb. Equilibrium ranges per Sklansky-Chubukov and Nash. Quiz mode with running accuracy score.
M-Ratio Calculator (Harrington Zones)
Compute your M-ratio (stack / (SB+BB+antes)) and place yourself in the Harrington tournament zones, Green, Yellow, Orange, Red, Dead.
Bankroll
Risk of Ruin Calculator
Risk of ruin probability for cash players. Plug in win rate, standard deviation, and bankroll-in-buyins. Get the probability of going bust before reaching infinity. Uses the standard exponential ROR formula.
Bankroll Calculator
Recommended bankroll for cash and MTTs at any risk tolerance. Conservative, standard, and aggressive presets based on win rate and standard deviation.
Rakeback / Rake-Adjusted ROI Calculator
Compute your effective hourly after rake and rakeback. Compares two rooms side-by-side using your stake, hands/hour, and personal win rate.
Kelly Criterion Bet Sizing
Optimal bet size for any +EV proposition given your bankroll and edge. Fractional Kelly modes (1/2, 1/4) for risk-adjusted sizing.
Hand math
Sklansky-Chubukov Rankings
The full SC rankings table: each starting hand's worst-case profitable push EV at any stack depth. The original push-fold framework, with stack-size lookups for every hand.
Texas Hold'em Odds Calculator
Exact preflop and postflop hand-vs-hand equity for hold'em. Up to 9 players. Range vs range support. Card removal handled.
Official Hand Rankings Chart
The 10 hold'em hand ranks from royal flush to high card, with combinatorics for each, the probability of being dealt each pre-river, and the worst-case beat for each.