Bankroll Calculator

What is Bankroll Management?

Bankroll management is the most important skill in gambling. No matter how big your edge, poor bet sizing leads to ruin.

Bet Sizing Strategies

• Full Kelly — Maximum expected growth rate. But extreme bankroll swings
• Half Kelly — Retains 75% of growth rate while dramatically reducing volatility. Recommended
• Flat Bet (2%) — Simple and safe. Best for beginners

About Ruin Probability

Even with an edge, oversized bets can lead to ruin through short-term variance. With half Kelly, ruin probability approaches zero.