Risk free betting calculator

June 26, 2009 by · Leave a Comment 

This is the calculator you can use to know what is the amount you have to use to lay the bet at betfair.


Betting Calculator


Please enter values:

Back stake (£):
Qualifier or free bet.
Back odds (decimal):
Back commission (%):
For most bookmakers this is 0.
Lay odds (decimal):
Lay commission (%):
For Betfair this is 5.

Type of bet:

Qualifier bet
Free bet, stake returned
Free bet, stake not returned

Lay stake (£):
(Lay this amount at the betting exchange)
Liability (£):
(Ensure you have this much to cover the bet)















Net profit overall (£)
% of original bet retained