POAS calculator
Profit on ad spend and break-even ROAS, from your real product costs, shipping, fees and returns. Everything runs in your browser; nothing is sent anywhere.
POAS is gross profit divided by ad spend. At 1.0 the ads exactly pay for themselves. Break-even ROAS is the lowest ROAS at which you don't lose money on these orders. Set your Google and Meta targets above it, not at a number that only looks good.
How the numbers are calculated.
kept revenue = revenue × (1 − returns%)
gross profit = kept revenue − product cost% × kept revenue − fees% × revenue − shipping × orders
POAS = gross profit ÷ ad spend
break-even ROAS = revenue ÷ gross profit
It's a simplified model: it doesn't include fixed costs like salaries or software, so "profit after ads" is contribution, not net profit.
Let Google and Meta see this number.
Knowing your POAS is step one. Making smart bidding optimize for it is Profit Signals: margin labels, profit reporting and profit-based bidding.
See Profit Signals →Profit math needs clean data.
If platforms miss part of your purchases, every ratio is off. Check that first, for free.