Use the stake calculator below to work out what your lay stake should be at the betting exchange.

Tick the Free Bet box if the bookmaker is offering a bonus bet and enter the amount into the Stake Forfeited field. Complete the Bookmaker and Betting Exchange fields then hit calculate. The Lay Stake amount is how much use should lay at the Betting Exchange

Free Bet 
Bet Amount 
Stake Forfeited 

Bookmaker (Back)
Commission %

Betting Exchange (Lay)
Commission %

Back Profit
Lay Profit
Lay Stake
Overall Profit