Poker calculators
Sixteen free calculators for the math you should be doing away from the table.
I want to…
Pick the question, get the calculator.
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
Range-vs-range equity calculator. Currently in development. For now, run specific hand matchups in the Hold'em odds calculator and weight them yourself.
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
Effective hourly after rake and rakeback for a single room, using your stake, hands per hour and personal win rate. Side-by-side room comparison is in development.
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.
Poker Bonus Clearing Calculator
Calculate exactly how many hours and how much rake you need to clear a poker welcome bonus. Pre-filled per room using verified May 2026 terms.
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
Hand-vs-hand equity for Texas Hold'em via exhaustive board enumeration. Two specific hands at a time. Range-vs-range and multi-way are in development.
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.
Common questions
Are these poker calculators free?
Yes. Every calculator on this site is free, runs entirely in your browser, and does not require an account or email signup.
Which calculator should I use to decide whether to call a bet?
The pot odds calculator. Enter the pot size, the bet you face, and your equity estimate against villain's range, and it returns the call/fold decision with the math shown.
How big should my poker bankroll be?
Use the bankroll calculator with your win rate and standard deviation. It returns the bankroll needed for 1%, 5% and 10% risk of ruin. For a typical 5bb/100 cash winner, 30 buy-ins is the 5% number.
What is ICM in poker and which calculator handles it?
ICM (Independent Chip Model) converts tournament chip stacks into real dollar equity. The ICM deal calculator produces dollar valuations for any payout structure and remaining stacks, useful at final-table deal time.
Do these calculators work on mobile?
Yes. All sixteen calculators are mobile-first and work on any modern browser without an app install.
