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Marketplace fee calculators

Each marketplace stacks fees differently — on shipping, per order, per listing, or through ads. Pick your channel and see what one order really nets you.

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Marketplaces calculators

More seller calculators

Amazon

All Amazon →

Everything Amazon takes from a sale, worked out from the official 2026 US rate card: referral and FBA fulfilment fees, size tiers, storage, and the ACOS ceiling your ads can afford.

Pricing & Profit

All Pricing & Profit →

Channel-independent maths every seller needs: what a unit truly costs to land, what margin a price leaves, and what price a target margin requires.

Amazon changes fees every January.
Get one email when the rate card changes — no spam, just the update.
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