Marginflow
Free Shopify Profit & POAS Calculator
See your real margin per product in seconds — including profit-on-ad-spend, the number most calculators ignore.
Your numbers
$
$
$
$
Stripe, Shopify Payments, etc.
$
Meta / Google / TikTok
%
Net profit / unit
$18.8
47.1% Margin · per unit
Healthy margin — this product can scale.
Margin
47.1%
Break-even price
$21.1
ROAS
6.23x
POAS
3.94x
profit per ad $
POAS (profit-on-ad-spend) = gross profit ÷ ad spend. Below 1.0 means ads cost more than the profit they bring — you lose money even with a 'good' ROAS.
Marginflow
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