Kelly Criterion Calculator

Basic Kelly Calculator

Kelly Criterion Formula

f* = (bp - q) / b
Where: f* = fraction of bankroll to bet, b = odds received (decimal odds - 1), p = probability of winning, q = probability of losing (1-p)

Win Probability (%):

Odds Format:

Odds:

Bankroll ($):

Kelly Fraction:

Kelly Percentage: -

Recommended Bet: $0.00

Expected Value: -

Risk Level: -

Potential Win: $0.00

Multiple Bets Portfolio

Portfolio Optimization

Add multiple betting opportunities to optimize your bankroll allocation across different bets using Kelly Criterion.

Bet Name:

Win Probability (%):

Odds:

Max Bet (% of bankroll):

Advanced Kelly Features

Kelly Growth Simulation

Bankroll Growth Projection

Compares your selected Kelly strategy vs. Fixed 5% betting over time. Shows exact Kelly percentages used and demonstrates the mathematical advantage of optimal bet sizing.

Starting Bankroll ($):

Number of Bets:

Average Win Rate (%):

Average Odds:

Kelly Strategy:

Risk Management

Conservative Bankroll Protection

Risk Tolerance: Max % of bankroll for single bet (2% recommended)
Stop Loss: Bankroll level to pause betting (80% of original)
Daily Limits: Prevent emotional over-betting during losing streaks

Current Bankroll ($):

Risk per Bet (% of bankroll): Conservative: 1-2%, Moderate: 3-5%

Max Consecutive Losses: Break after this many losses in a row

Max Bets Per Day: Prevent overexposure

Stop-Loss Strategy:

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