Bet Calculator
Calculate payouts, analyze risk, and size your bets.
Total Payout
Stake
Odds
Implied Prob
The sportsbook's estimated chance of this bet winning, derived from the odds.
Your Win %
Your estimated probability — from hit rates or manual entry. Compare vs implied prob to find value.
Expected Value
How much you'd profit on average per bet. Positive EV = long-term profitable bet.
Legs
Bet
Odds
Win %
No legs yet
Import from slip, search props, or add manually
Bankroll & Risk
Enter your total bankroll to get bet-sizing recommendations based on the Kelly Criterion — a formula that maximizes long-term growth.
Risk Level
Based on what % of your bankroll this bet represents. Under 2% = standard, over 5% = very high.
% of bankroll
Recommended Sizing
Kelly Criterion calculates the optimal bet size based on your edge. Quarter Kelly (safer) is recommended for most bettors.
Optimal (Full Kelly)
Recommended (¼ Kelly)
Quick Stakes
Click to apply this stake amount. Safe = 1% of bankroll, Standard = 2%, Aggressive = 5%.
Enter your bankroll to see risk analysis
Add legs to see risk analysis
Add from Props
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