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Business & Accounting

Cost per Lead Calculator

Calculate cost per lead and the implied cost per customer from campaign spend, leads and your lead-to-customer rate.

Your inputs

Results

Cost per lead

$20.00

Expected customers
15
Cost per customer
$200.00

✓Exact calculation — rounded only for display

What this calculator does

Cost per lead tells you what each enquiry costs; combining it with close rate shows what each customer costs.

Formula and method

CPL = spend ÷ leads; Customers = leads × close rate; Cost per customer = spend ÷ customers

Worked example

Calculated by this tool with its default inputs:

Inputs

  • Campaign spend: 3000 (any currency)
  • Leads generated: 150
  • Lead-to-customer rate: 10 %

Results

  • Cost per lead: 20
  • Expected customers: 15
  • Cost per customer: 200

How to read the results

A cheap lead source with a low close rate can be more expensive per customer than a pricier one.

Assumptions and limitations

  • Lead quality varies by channel.

Financial results are estimates based on the inputs and assumptions shown. They are not financial advice; confirm figures with your lender, provider or a qualified adviser before making decisions.

Questions

CPL vs CPA?

CPL is per lead; CPA (cost per acquisition) is per customer or conversion.

Methodology and verification

Result type
Exact mathematical calculation (rounded only for display)
Formula version
1.0
Automated verification
2 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
Editorial review
Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.

Privacy

Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Inputs are added to a share link only if you choose to include them. Privacy policy