PokerGods.com may earn a commission when you sign up through links on this site. 18+ only. Play responsibly. Affiliate disclosure
PokerGodsA poker site for people who already play poker.
Reviews
Top rooms
CoinPokerGGPokerWPT GlobalAmericas Cardroom
More rooms
PokerStars888pokerBC PokerAll reviews ›
Pillars
Best poker rooms 2026Top poker sites 2026Poker promo codes
Rake
Compare
Rake comparison tableRakeback ROI calculatorBankroll calculator
By room
CoinPokerGGPokerWPT GlobalAmericas CardroomPokerStars
Tools
Cash
Poker Variance CalculatorRange vs Range Equity CalculatorPot Odds & Implied Odds CalculatorEV Calculator
Tournaments
Tournament Variance CalculatorICM Deal CalculatorPushbot / Push-Fold TrainerM-Ratio Calculator (Harrington Zones)
Bankroll
Risk of Ruin CalculatorBankroll CalculatorRakeback / Rake-Adjusted ROI CalculatorKelly Criterion Bet Sizing
Hand math
Sklansky-Chubukov RankingsTexas Hold'em Odds CalculatorOfficial Hand Rankings Chart
Networks
Networks
All networksGGNetworkWinning Poker Network (WPN)Chico Poker NetworkiPoker NetworkPaiwangluo Network (PPPoker / PokerBros)
Strategy
Concepts
Strategy hubVarianceICMBankrollPush-fold
News
Latest
All newsBest poker sites 2026Top crypto poker rooms2026 WSOP scheduleSunday Million ICM
Live
Live poker calendar 2026

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.

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.

R

Risk of ruin in cash games

The classical risk-of-ruin formula for a player with positive win rate is RoR = exp(-2 × wr × bankroll / sd²) where wr and bankroll are in bb and sd is bb/100. It assumes you never move up or down stakes, a worst-case ceiling.

Standard discipline benchmarks: under 5% is comfortable, under 1% is overkill, over 20% is reckless.