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How to Use the Kelly Criterion Calculator
The Betstamp Kelly Criterion Calculator is designed to help you manage your bankroll and optimize bet sizing based on your edge. Instead of guessing how much to stake, this tool uses a proven mathematical formula to calculate the ideal wager — maximizing growth while minimizing the risk of going bust.
The idea is simple: When you have an edge (i.e., the sportsbook odds are worse than the true fair odds), the Kelly Criterion helps you figure out exactly how much to bet. It tells you when to press your edge — and when to stay away entirely. If the odds don’t offer value, the calculator will suggest a $0 bet.
Let’s say you have a $10,000 bankroll. You enter the odds, your estimated fair win probability, and Betstamp’s Kelly Calculator tells you whether to bet 1%, 2%, or even less — depending on how strong your edge is. That way, you’re always betting responsibly while still aiming to grow your bankroll long-term.
To use the calculator effectively, you’ll need to input:
- The odds you’re being offered
- The “fair” win probability (often derived from sharp or no-vig odds)
- Your current bankroll
When used correctly, the Kelly Criterion is one of the most powerful strategies in all of sports betting. It's trusted by professionals for a reason: it balances risk and reward better than any fixed unit system.
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