What this calculator can tell you
It calculates the formula from the values you enter. It does not verify that currencies, attribution semantics, product mappings, or cost inputs are compatible.
Free calculator
CPA is spend per attributed acquisition. Compare it with contribution available before ads rather than treating a low CPA as profitable by itself.
CPA = ad spend ÷ attributed acquisitions
The calculator will show a result once the required denominator or baseline is greater than zero.
It calculates the formula from the values you enter. It does not verify that currencies, attribution semantics, product mappings, or cost inputs are compatible.
Metrico can apply the same question to synchronized Shopify and supported paid-media data while keeping the relevant account, currency, mapping, and inventory context available.