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Free tool
Cost per lead calculator
Enter five numbers and get cost per lead, cost per qualified lead, cost per sale, ROAS and profit or loss — updated live as you type. No sign-up, works on a phone.
Total you pay the ad platforms each month.
Raw enquiries captured in the same period.
Share of leads that meet your "worth following up" rule.
Of qualified leads, how many become customers.
Revenue per closed customer.
Try the defaults: £4,000 spend, 320 leads, 35% qualified, 25% close, £1,200 deal. The figures below match the worked example in our CPQL guide.
Cost per lead£12.50
Cost per qualified lead£35.71
Cost per sale£142.86
ROAS8.40×
Profit / loss+£29,600
How the maths works. Qualified leads = leads × (qualification rate ÷ 100). Sales = qualified leads × (close rate ÷ 100). CPL = spend ÷ leads. CPQL = spend ÷ qualified leads. Cost per sale = spend ÷ sales. Revenue = sales × deal value. ROAS = revenue ÷ spend. Profit = revenue − spend.
Stop calculating, start tracking
The calculator shows you the maths for one month. Leadtrak does it every day, by source, with no spreadsheet.