What is the Kelly Criterion?
The Kelly criterion is a simple formula that calculates the proportion of your balance to wager on a particular gamble. Learn more about the Kelly criterion.
Kelly Criterion Calculator
The online Kelly criterion calculator determines a recommended stake based on the prevailing odds and your estimated probability that the selection will win.
All of the major odds formats are supported. The calculator also supports markets where a push/refund is possible as well as lay betting on a betting exchange such as Betfair. Fractional Kelly betting is also supported.
Two versions of the calculator are available: a bookmaker version and a betting exchange version.