Free Betting Calculators That Show You the Fair Price

Determine the mathematically optimal stake size based on your edge.

Calculate the expected value (+EV) and long-term yield of your bets.

Strip bookmaker commissions to reveal true probabilities and fair odds.

Identify and calculate guaranteed profit opportunities across sportsbooks.

Calculate combined odds, payouts, and true probabilities for multi-leg slips.

Compare your bet price to the closing line to evaluate execution quality.

Expose the secret commission (overround) charged by sportsbooks on a line.

Track wagers, monitor yield (ROI), and analyze your portfolio metrics.

Generate score expectations and outcomes using Poisson team distributions.

Split a total stake across multiple selections for equal returns.

Lock in profits or minimize losses by hedging open positions.

Convert free bets and bonuses into guaranteed cash using opposite hedging.

Calculate exchange liability and optimize matched betting positions.

Calculate arbitrage stake splits for live, in-play market updates.

Predict score probabilities and display match score matrices.

Calculate Both Teams to Score and Over/Under goal probabilities.

Map Draw No Bet, Asian Handicap, and Double Chance lines.

Analyze soccer team metrics using expected goals (xG) calculations.

Run stress-tests comparing flat wagers against Kelly sizing models.

Simulate and optimize stake distribution across multi-bet options.

Predict match corner kicks based on team offensive ratings.

Analyze same-game parlays and evaluate correlated outcomes.

Calculate true profit value when sportsbooks offer boosted prices.

Track net tax liabilities across regional tax rules and payouts.

Analyze player prop lines against projected statistical spreads.

Translate American, Decimal, Fractional odds formats instantly.

Convert odds to implied probability percentages to find expected holds.

Compute the minimum win percentage required for long-term profit.

Expose lines where offered odds are higher than fair model probability.

Calculate the exact mathematical probability of complete bankroll ruin.

Optimize fixed percentage sizing plans with optional variance shields.

Compute combos of systems and round robins from a selection list.

Evaluate win/place terms and ROI for each-way wagers.

Calculate Patent, Lucky 15, Lucky 31, and Lucky 63 payouts.

Predict half-time and full-time combination probabilities.

Predict anytime, first, and multiple goalscorer probabilities.

Predict clean sheet likelihood based on defensive ratings.

Convert 1X2 odds into Draw No Bet and Double Chance equivalents.

Compare the bookmaker's cash-out offer to hedging it yourself.

Calculate Draw No Bet stakes and synthetic DNB from 1X2 markets.

Log every wager with stake, odds, CLV and running profit.