Betting Calculators

Convert American, Decimal, Fractional odds and implied probability.

Optimal stake sizing based on edge and odds.

Split stakes across sportsbooks to lock in profit.

Distribute stakes across multiple outcomes for a level return.

Maximize value from free bets and bonuses.

Remove the vig to estimate fair odds and edge.

Combine legs and compute parlay odds and payouts.

Estimate expected value given odds and probability.

Convert spreads into fair moneyline odds across leagues.

Turn scoring rates into exact, at-least, and at-most probabilities.