Amazon FBA Profit & Margin Calculator

See your real net profit per unit after Amazon's 15% referral fee (min $0.30), FBA and storage - before you order stock that sells at a loss.

Amazon referral fee—$
Fulfillment cost—$
Total Amazon fees—$
Total cost per unit—$
Net profit per unit—$
Profit margin—%
Return on investment (ROI)—%
Break-even sale price—$
Break-even ACoS—%
Profit at 100 units/month—$
Toolbar profit calculator
Open the FBA profit calculator from your browser toolbar on any Amazon tab, with no site to visit.
Saved seller defaults
Store your usual COGS, category, FBA fee and PPC once so every new product needs only price and cost.
Built-in referral-fee table
27 Amazon category referral rates and the $0.30 minimum are built in, so you never look them up.
Break-even price & ACoS
See the lowest sale price you can accept and your break-even ad spend before you order stock.
Copy fee breakdown
Copy the full net-profit breakdown to paste into your sourcing sheet.
Works offline
All maths runs locally; no account, no login, and no data leaves your machine.

Get the full version $60

The installed Chrome extension: it lives in your browser toolbar on every Amazon tab, remembers your default COGS, category, FBA fee and PPC (storage) so each new product needs only price and cost, copies the full breakdown to your clipboard, runs offline, and ships as files you own with the 27-cate

One payment, one licence key for this tool. The key is shown right after payment.

Amazon seller software that runs this calculation is sold by subscription - common tools are $39-$49/month, about $468-$588/year; this is a one-time file you own and run offline.

Buy the full version — $60
Embed this calculator on your site (free)

Paste this code into your page. It runs in your visitor’s browser and stays up to date. Nothing your visitors type is stored.

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