BETTING CALCULATORS

Professional tools to help you make smarter wagering decisions

Convert between American, Decimal, and Fractional odds formats instantly

Derive no-vig probabilities and implied scores from sharp moneyline, spread, and total

Remove bookmaker vig with 5 different methods — EM, MPTO, Shin, Odds Ratio, and Logarithmic

Determine the expected value of any betting opportunity

Calculate optimal bet sizing based on your edge and bankroll

Calculate potential payouts for 2-10 leg parlay bets

Find profitable arbitrage opportunities across 2-3 sportsbooks

Calculate the exact hedge bet needed to guarantee profit or minimize loss

Measure how much you beat the closing line — the best predictor of long-term profit

See the book's hold percentage, break-even margins, and no-vig fair odds for any two-sided market

Compare odds from multiple books on the same market to find the lowest vig and sharpest line

Monte Carlo simulation of bankroll survival — see the probability of going broke given your edge and bet sizing