CPA Calculator
Enter your marketing spend and total conversions to instantly calculate your Cost per Acquisition. Understand what each conversion costs across any channel.
How to Use This Calculator
CPA measures how much you spend to generate each conversion. It is the fundamental efficiency metric for any paid acquisition channel.
Enter your marketing spend
Use the total spend for the campaign or channel — including all platform fees, production costs, and management overhead if fully-loaded CPA is your goal.
Enter total conversions
Count all conversions for the same period. A conversion can be a purchase, form fill, trial sign-up, or any goal event you are optimising toward.
See your CPA instantly
The result shows what you are paying for each conversion. Compare across channels, campaigns, or time periods to find your most efficient acquisition routes.
Compare CPA against order value
CPA is meaningful relative to your average order or deal value. If CPA is higher than your gross margin per conversion, the channel is not profitable at current volume.
Want to lower your cost per acquisition?
We build growth systems that reduce CPA through smarter channel mix, landing page optimisation, and organic acquisition — not just by spending more.
Talk to us