Stop-Loss Calculator

Analyze optimal stop-loss amounts and their impact on your expected value.

Your total available bankroll for the session.
Your expected win rate advantage.
Your standard bet amount.
The maximum loss at which you will stop playing for the session.
Planned number of hands/bets in the session.
SD per unit bet. Blackjack ~1.15.

Stop-Loss Analysis

Stop-Loss in Units
Prob. of Hitting Stop-Loss
Expected Session EV (no stop-loss)
EV Cost of Stop-Loss
Expected Hands Before Stop-Loss Hit

Optimal Stop-Loss Comparison

Stop-Loss ($)In UnitsProb. HitEV Cost

Recommendation

Formulas:
P(hitting stop-loss) ≈ Φ((-SL - EV) / Session_SD)
EV cost = P(hit) × (remaining_EV after stop-loss point)
Expected hands to hit SL = (SL / bet)² × SD² / (1 + e²) (random walk approx.)
Source: Griffin "Theory of Blackjack"; Malmuth "Gambling Theory"