Matched Betting Calculator

Select bet type

Qualifying Bet - Use when placing back and lay bets to qualify for a free bet. Free Bet - Use when extracting profit from a free bet or bonus. Risk-Free Bet - Use to calculate the lay stake for a risk-free bet.

Back Bet (Bookie)

Back stake

Stake returned

Cashback

Back odds (decimal)

Back commission

Lay Bet (Betting Exchange)

Lay odds (decimal)

Lay commission

Min £

Max £

Lay stake required: £

Bookie

Exchange

Cashback

Total

If back (bookie) bet wins

= £

If lay (exchange) bet wins

= £

Total profit: £

Optimal Underlay

Lay stake required: £
Total exchange Exchange liability: £

If back (bookie) bet wins: £
If lay (exchange) bet wins: £

Optimal Overlay

Lay stake required: £
Total exchange Exchange liability: £

If back (bookie) bet wins: £
If lay (exchange) bet wins: £

How it works

Whether it’s an initial qualifying bet, a free bet, or a risk-free bet, this matched betting calculator will tell you how much to stake at the betting exchange in order to minimise initial losses and maximise overall profits, whatever the outcome. Please see my guides for an explanation of matched betting and how betting exchanges work.