Tools · Calculator
Calculator fi risk a ruin
Di probability fi reach a profit target bifo yuh lose di whole bankroll, wen yuh flat-bet even money.
Bankroll
Bet
Target
Ow fi read di result
If yuh bet $10 a time, yuh have a 24.6% chance fi tun $500 into $750 bifo yuh bruk. Bigga bet raise dat probability cause less spin mean yuh pay di 2.70% toll less time; but dem mek di ride wilder too. Try $100 bet gainst $5 bet fi see di effect.
Method an assumption dem
Gambla ruin wid p = 18/37: P(target) = (1 − (q/p)ᵃ)/(1 − (q/p)ᵃ⁺ᵇ), a = bankroll/bet, b = target/bet. Expected duration a/(q−p) − (a+b)·P/(q−p). Only flat even-money bet.