Performance Marketing Margin Protector
Find the maximum CPA you can pay and still hit your target profit margin.
$
%
%
Profit you want to keep after ad cost.$
Break-even CPA
$330
AOV × gross margin
Max CPA (protects profit)
$210
Ceiling for your target margin
Headroom vs. current
$30
Max − current CPA
Current margin after ads
25.0%
Left after acquisition
Safe — at $180 you're under the $210 ceiling and still hold your 20% target. You have $30 of room to bid harder.
Treat max CPA as a hard bid rail — set it as your target/cap so the platform can't scale you past profitability.
About this calculator
From order value, gross margin and a target profit margin, compute the break-even CPA and the max CPA that protects profit — your automatic acquisition safety rail.
Everything runs in your browser — nothing you type is sent anywhere or stored. Use it to sanity-check a plan, pressure-test a channel, or brief a team before you commit budget.