Enter ad spend and conversions to calculate CPA (cost per acquisition) instantly. Reverse-calculate expected conversions from a target CPA and budget, or find the required budget for a target conversion count. Everything runs in your browser with no data sent to a server.
CPA = ad spend ÷ conversionsWhat it is, who it's for, how it works and why you'd use it.
CPA Calculator is a tool that computes Cost Per Acquisition (ad spend ÷ conversions), reverse-calculates expected conversions from a budget and target CPA, and finds the required budget for a target number of conversions.
It is for marketers tracking conversion performance, small business owners running performance ads, and PMs managing campaign KPIs.
In CPA mode, enter ad spend and conversions to see CPA instantly. In reverse modes, enter a target CPA with a budget to get expected conversions, or a target conversion count with a CPA to get the required budget.
CPA measures advertising efficiency in terms of outcomes rather than clicks or impressions. Setting a target CPA lets you plan budgets around actual business goals.