Normal matched betting calculator
Standard back and lay calculator for qualifying bets, free bets and risk free offers with underlay, standard and overlay modes.
Calculators
BYB betting calculators
Use these to size your stakes and check the profit or loss across outcomes. They match the logic used inside PocketProfit and BYB.
Unwanted lay calculator
Work out the correct back stake when you have an exchange lay you no longer want and need to neutralise the position.
Multi lay calculator
Split a lay stake across multiple outcomes and see your profit lines for every scenario. Supports normal and free bet modes.