Feeproof

Bulk FBA calculator

Check a whole supplier list in one go. Every row gets its size tier, every Amazon fee, net profit, margin, ROI and the nearest fee cliff.

Uses Amazon's US rates checked October 18, 2026. Runs in your browser; nothing you type is sent anywhere.

Paste from Excel or Google Sheets, or upload a CSV. Columns: name, price, cost, length, width, height, weight, and optionally category, type, inbound, units. Header names are matched loosely.
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% of sales
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Questions

What columns does the bulk calculator need?

Price, length, width, height and weight are required. Name, cost, category, type (standard, apparel or hazmat), shipping to Amazon and monthly units are optional; missing values use the settings you choose.

Are the results the same as the single-product calculator?

Yes. Every row runs through the same fee engine, so a row and the same product in the main calculator give identical numbers. Our automated tests check this.

Is my supplier list uploaded anywhere?

No. The file is read and analyzed in your browser. Nothing is sent to a server, so you can use confidential price lists.

How many rows can it handle?

Thousands. A list of 2,000 products typically finishes in a few seconds on a laptop.