Customer acquisition cost (CAC) calculator
Calculate average CAC and the payback period for customer acquisition spend.
Assumptions
Measure the average cost of acquiring a new customer and estimate payback from monthly gross profit per customer.
Ready to calculate
Adjust the assumptions, then run the calculation.
CAC = (marketing spend + sales spend) ÷ new customers acquired.
Management metric only: interpret the result using your accounting methods, business model, and reference period.