Sports Betting Calculators & Simulators
Essential math tools for profitable sports betting. All free, no signup required. Calculate edges, optimize stakes, and convert promos instantly.
Free Betting Calculators
Arbitrage Calculator
Calculate guaranteed profit from arbitrage opportunities across sportsbooks.
Open Calculator →Expected Value Calculator
Calculate the expected value (+EV) of any bet to determine if it has a positive edge.
Open Calculator →Kelly Criterion Calculator
Determine optimal bet sizing based on your edge and bankroll.
Open Calculator →Hedge Calculator
Calculate the exact hedge bet amount to guarantee profit or minimize loss.
Open Calculator →No-Vig Fair Odds Calculator
Remove the vig from sportsbook odds to find the true fair probability.
Open Calculator →Parlay Calculator
Calculate parlay payouts and implied probabilities for multi-leg bets.
Open Calculator →Betting Calculators Explained
Understanding the math behind profitable sports betting.
Why Calculators Matter
Sports betting math is precise. A 1% error in your hedge calculation can turn a profitable opportunity into a loss. Calculators eliminate human error and save time.
Arbitrage Calculations
Determine exact stake distribution across sportsbooks to guarantee profit regardless of outcome. Input odds from two books, get precise bet amounts instantly.
Expected Value (EV)
The foundation of profitable betting. EV tells you whether a bet is worth placing by comparing the odds offered against the true probability of winning.
Kelly Criterion Staking
Bet too much and you risk ruin. Bet too little and you leave profit on the table. Kelly Criterion finds the mathematically optimal stake for any edge.
Hedge Bet Math
Lock in guaranteed profit from existing bets or free bet promotions. The hedge calculator finds the exact opposing bet amount to equalize profit on both sides.
No-Vig Fair Odds
Strip the bookmaker margin to reveal true probabilities. Essential for identifying value bets — if a book offers odds above the no-vig fair price, you have an edge.
Parlay Payouts
Understand the true implied probability of multi-leg bets. Most parlays are -EV, but the calculator helps you identify when boosted parlays offer genuine value.
Conversion Rate Math
Free bet conversion rates depend on the odds you choose. Higher odds mean higher conversion but require larger hedge stakes. The math optimizes this tradeoff.
Bankroll Sizing
How much to allocate per strategy, per sportsbook, and per bet. Proper sizing ensures you never miss opportunities due to insufficient funds in the right account.
Combining Calculators
Professional bettors chain calculations: find a +EV bet (EV calc), size it optimally (Kelly), then hedge if needed (hedge calc). The workflow becomes second nature.