Cost Per Lead (CPL)

Cost per lead (CPL) is the average amount you spend to generate one lead — one phone call, form submission, or inquiry from a potential customer. You calculate it by dividing your total campaign spend by the number of leads it produced.

Imagine a roofing company spends $1,200 on Google Ads in a month and gets 30 phone calls and form fills. Their CPL is $40 — they paid roughly $40 for each new person who reached out. That number is far more useful than knowing what they paid per click, because it connects spend directly to real prospects.

Cost per click tells you what you paid for traffic. CPL tells you what you paid for interest. A campaign can have a low CPC but a terrible CPL if the clicks never turn into inquiries — which usually points to a weak landing page or poor keyword targeting.

Whether a CPL is "good" depends entirely on your economics:

• A $60 CPL is excellent for a business whose average job is worth $8,000.
• The same $60 CPL is unsustainable for a business selling a $50 product.

To judge CPL properly you need to know your average job value and how many leads you actually close. This is also why Local Services Ads — which charge per lead rather than per click — appeal to so many local businesses. See our breakdown of LSA cost per lead for how that model compares.