π Sports betting β’ Calculators
Bet outcomes, EV, parlays, hedges, arbs
Enter your odds + stake and instantly see payout, profit, implied probability, expected value,
Kelly stake sizing, parlay return, hedging stakes, and arbitrage viability.
Odds, payout, implied probability, EV
Supports American, Decimal, Fractional. Add your βtrue win chanceβ to compute EV.
Tip: include + or - for American odds.
Optional β used for EV + Kelly (in the Kelly tab too).
If you want a rough βafter vigβ payout estimate, enter your effective fee here.
Used for quick βrisk %β display.