Kelly criterion calculator

OddsDecimal (2.10) or American (-110)Your true win %Your honest probability, 0–100BankrollTotal betting bankroll

Full Kelly suggests staking 8.33% of bankroll. Many punters use half-Kelly to smooth variance.

Full Kelly

8.33%

$83.33

Half Kelly

4.17%

$41.67

Kelly only works with an honest probability estimate. If you overestimate your edge, Kelly overstakes — half-Kelly is the common, more conservative choice.

Calculator by HaterPicks · information, not advice · 18+