Cost per lead calculator (CPL)
Built for lead forms, WhatsApp message campaigns and quote requests. Add your close rate if you know it to see the true cost per customer.
Loading the tool…
Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter campaign spend, number of leads and close rate (optional).
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
CPL = spend ÷ leads. Expected customers = leads × close rate ÷ 100. Cost per customer = spend ÷ expected customers.
Example
Inputs: Campaign spend = 3,000, Number of leads = 120, Close rate (optional) = 10 %. Result: Cost per lead: 25.00; Expected customers: 12; Cost per paying customer: 250.00.
Limits and caveats
- Cost per paying customer is an estimate based on the close rate you enter.
- It leaves out the sales team time spent following up leads.
Questions about this tool
What counts as a lead?
Someone who left their details or asked to be contacted, such as filling a form or messaging from the ad, but has not bought yet.
Why add the close rate?
CPL alone can mislead: cheap leads that never buy can cost more than pricier leads that do. The close rate turns it into the cost of each real customer.
How do I find my close rate?
Divide the number who bought by the number of leads in the same period and multiply by 100, using your sales log or CRM.