Tools & Calculators
Real calculators based on standard betting-industry formulas.
Odds Converter
Convert odds between decimal, fractional and American formats, and see the implied probability.
Bet Calculator
Calculate the potential return and profit of a single bet from your stake and odds.
Accumulator Calculator
Calculate the combined odds and potential return of a multi-selection accumulator bet.
ROI Calculator
Calculate the return on investment (ROI) of your betting over a period.
Dutching (Arbitrage) Calculator
Spread a total stake across multiple outcomes to achieve the same profit no matter which one wins.
Matched Betting Calculator
Calculate the 'lay' stake needed at an exchange to neutralise a 'back' bet at an operator.
Bonus (Rollover) Calculator
Calculate the total turnover needed to meet a bonus's wagering (rollover) requirement.
Free Bet Calculator
Estimate the real cash value of a 'stake not returned' free bet.
Expected Value (EV) Calculator
Compare the offered odds with your own probability estimate to identify value bets.





