Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Betting Odds
Kelly Criterion Calculator
Calculates the mathematically optimal percentage of your bankroll to wager on a positive-EV bet using the Kelly Criterion, with optional fractional Kelly for reduced variance. Use it to maximize long-run growth while controlling ruin risk.
Fill in the required fields to see your result.
Betting Odds
Kelly Criterion Betting Calculator
Calculate the mathematically optimal fraction of your bankroll to wager on a bet using the Kelly Criterion. Ideal for bettors who want to maximize long-term bankroll growth while avoiding ruin.
Fill in the required fields to see your result.
Key differences
| Kelly Criterion Calculator | Kelly Criterion Betting Calculator | |
|---|---|---|
| Category | Betting Odds | Betting Odds |
| Inputs required | 4 | 4 |
| Result | Optimal Bet Size ($) | Optimal Bet Size ($) |
| What it does | Calculates the mathematically optimal percentage of your bankroll to wager on a positive-EV bet using the Kelly Criterion, with optional fractional Kelly for reduced variance. Use it to maximize long-run growth while controlling ruin risk. | Calculate the mathematically optimal fraction of your bankroll to wager on a bet using the Kelly Criterion. Ideal for bettors who want to maximize long-term bankroll growth while avoiding ruin. |