Arbitrage
Free Bet Converter
Hold
Odds Converter
Implied Probability
Prediction Market
Expected Value
Kelly Criterion
Vig / Juice
No-Vig Fair Odds
Half Point
Point Spread
Parlay
Round Robin
Poisson

Trading Calculators

Free tools to find edges, convert bonuses, and understand the math behind sports betting.

Arbitrage

Find locked-in profit across sportsbooks

Free Bet Converter

Convert bonus bets into locked-in cash

Hold

See the sportsbook's built-in margin

Odds Converter

Convert between American, Decimal, and Fractional

Implied Probability

Calculate the implied win probability from odds

Prediction Market

Convert prediction market prices to betting odds

Expected Value

Calculate the expected value of a bet

Kelly Criterion

Optimal bet sizing based on edge and bankroll

Vig / Juice

Calculate the sportsbook's vigorish on a market

No-Vig Fair Odds

Remove the vig to find true fair odds

Half Point

Calculate the cost of buying a half point

Point Spread

Point spread payout and probability calculator

Parlay

Calculate parlay odds, payouts, and implied probability

Round Robin

Calculate all parlay combinations from your selections

Poisson

Score probability distribution for game totals

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