Kelly criterion calculator
How much of your bankroll a bet with an edge deserves, with a fraction and a cap.
Result
- Edge (EV per $1)
- -18.0%
- Full Kelly
- 0.00%
- Your stake
- 0.00% of bankroll
- In dollars
- $0.00
No edge at this price, so Kelly stakes nothing.
Pro fills in the fair price from the sharp market for every bet at your books, and finds the best places to use a boost tonight. See Pro
Get this math on every promo at your books
Parity Odds Pro prices every bet, prop, and promo against the fair price, every few minutes. A research tool, not a sportsbook.
How it works
The Kelly criterion sizes a bet by its edge: the bigger the gap between the fair chance and the price, the more it stakes. With no edge it stakes nothing.
Full Kelly is aggressive because the fair chance is an estimate. Most bettors use a quarter Kelly and cap any single bet at a small share of the bankroll.
Only bet money you can afford to lose. A bankroll is money set aside for betting, not savings.