Free Tool
CPA Calculator
Calculate your Cost Per Acquisition to understand how much it costs to win each customer.
Quick Answer
CPA Calculator uses the formula: CPA = Total Ad Spend ÷ Total Conversions. Enter your numbers above to get instant results — free, no sign-up required.
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Formula
CPA = Total Ad Spend ÷ Total Conversions
What is CPA?
CPA (Cost Per Acquisition) tells you how much it costs to acquire one customer through advertising. It's the most direct measure of ad campaign efficiency for e-commerce.
Unlike ROAS which measures revenue, CPA measures cost — making it easier to set hard budget limits and compare channels.
CPA Benchmarks by Industry
- Fashion & Apparel: $15 – $40
- Beauty & Skincare: $20 – $50
- Electronics: $30 – $80
- Food & Beverage: $10 – $30
- Home & Furniture: $40 – $100