Kelly Criterion Calculator
Calculate optimal bet size based on your bankroll, odds, and estimated win probability.
About This Calculator
This Kelly Criterion Calculator helps bettors determine the optimal bet size based on bankroll size, odds, and estimated win probability. It is designed to help manage risk and maximize long-term bankroll growth by suggesting a mathematically optimal stake for each wager.
How to Use
- Enter your total bankroll amount
- Enter your estimated win probability (%)
- Enter the American odds for your bet (e.g. +150 or -110)
- View the recommended bet size instantly
FAQ
What is a Kelly Criterion calculator?
A Kelly Criterion calculator helps you determine the optimal bet size based on your bankroll, odds, and estimated probability of winning.
How does a Kelly Criterion calculator work?
The calculator uses your bankroll, win probability, and American odds to calculate the mathematically optimal stake size for long-term bankroll growth.
What is the Kelly Criterion?
The Kelly Criterion is a formula used in betting and investing to determine how much to risk on a wager based on the perceived edge and probability of winning.
Why does the Kelly Criterion sometimes recommend large wagers?
When a bettor has a significant perceived edge, the Kelly formula may recommend a larger percentage of bankroll to maximize long-term growth.
Do I need to know my exact win probability?
No, but the more accurate your estimated probability, the more reliable the recommended bet size will be.
Can I use this calculator for any American odds?
Yes. The calculator works with standard American odds such as +150 or -110.
Is this Kelly Criterion calculator accurate?
Yes. It uses the standard Kelly formula to calculate optimal bet sizing based on bankroll, probability, and odds entered.
Why use a Kelly Criterion calculator?
It helps bettors size their wagers more effectively to balance risk and maximize long-term bankroll growth.