Free Betting Tools
Professional-grade calculators to optimize your betting strategy and maximize profits
Arbitrage Calculator
Calculate guaranteed profits by betting on all outcomes of an event at different bookmakers.
Use This CalculatorMatched Betting Calculator
Calculate your lay stake and potential profit for matched betting strategies.
Use This CalculatorExpected Value Calculator
Determine the long-term profitability of a bet based on odds and probability.
Use This CalculatorMiddle Betting Tool
Find opportunities to win both sides of a bet by exploiting differences in point spreads.
Use This CalculatorLow Hold Calculator
Identify low-hold betting opportunities to minimize losses when clearing bonuses.
Use This CalculatorHedge Bet Calculator
Calculate how much to bet on the opposite outcome to guarantee a profit or minimize loss.
Use This CalculatorDutching Calculator
Distribute your stake across multiple selections to achieve the same profit regardless of which wins.
Use This CalculatorLay Bet Calculator
Calculate stakes and liability for lay bets on betting exchanges like Betfair.
Use This CalculatorKelly Criterion Calculator
Determine the optimal stake size to maximize long-term growth of your bankroll.
Use This CalculatorNo-Vig Odds Converter
Remove the bookmaker's margin to find the true probability of outcomes.
Use This CalculatorOdds Converter
Convert between decimal, fractional, American, and implied probability odds formats.
Use This CalculatorFree Bet Converter
Calculate how to maximize the value of free bets and bonuses from bookmakers.
Use This CalculatorSurebet Profit Splitter
Calculate optimal stakes for 2 or 3 outcomes to guarantee a profit regardless of the result.
Use This CalculatorBet Sizing Calculator
Calculate your optimal stake based on a fixed percentage of your bankroll.
Use This CalculatorUnit Size Calculator
Define your betting unit size based on your bankroll and risk tolerance level.
Use This CalculatorBreak-Even Odds Calculator
Find the minimum odds needed to be profitable given your win rate.
Use This CalculatorImplied Probability Calculator
Convert odds in any format (decimal, fractional, American) into implied probability.
Use This CalculatorExpected ROI Calculator
Compute your expected return on investment for a given odds and win rate.
Use This CalculatorReverse Kelly Calculator
Back-calculate your implied edge based on bet size, odds, and bankroll.
Use This CalculatorEdge Calculator
Calculate if a bet has positive or negative edge based on odds and implied win rate.
Use This CalculatorOdds Arbitrage Finder
Enter odds from multiple bookmakers and automatically highlight arbitrage opportunities.
Use This CalculatorStaking Plan Simulator
Simulate profit over time using various staking strategies (flat, Kelly, % bankroll).
Use This CalculatorBankroll Growth Estimator
Estimate how long it will take to reach a target bankroll using compounding and % return.
Use This Calculator