Betfair Calculator

Easily calculate your back and lay odds on betting exchange sites such as Betfair, Betdaq and WBX.

Betting on betting exchange websites such as Betfair and Betdaq is a doddle. Their sports markets include football, horse races, american football and tennis and can all be wagered on with ease.

Calculating the odds required to 'green-out', or in english - make a profit, whatever the result, can be much more difficult.

This calculator is designed to help you find out if it is possible to make money by opposing your original bet.

Bet Information

Toggle the bet typeClick here to switch to the lay bet calculator

I've backed a market, now I want to lay it