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SellerSums
100% free — no signup

Know your profit on any marketplace

SellerSums builds free fee & profit calculators for online sellers — every fee modeled from the marketplace's real published rates, so you can price with confidence before you buy inventory.

Amazon & Etsy live in 4 countries each · eBay & Noon on the way

Why sellers use SellerSums

Real fee tables, not estimates

Every calculator models the marketplace's actual published fee structure — category rates, price tiers, minimums and surcharges — never one flat percentage.

Compare fulfillment options

See marketplace fulfillment versus shipping it yourself, side by side — like FBA vs FBM on Amazon — so the biggest per-product decision is answered at a glance.

Local rules, per country

Each marketplace and country gets its own fee schedule, currency and units — including the quirks, like Australia's missing minimum referral fee.

Updated when fees change

Every calculator shows the effective date of its fee data. When a marketplace announces changes, the tables are refreshed — no stale numbers.

More marketplaces on the way

The same fee-accurate treatment is coming to more platforms. Want one sooner? Tell us on the blog.

eBay

Final value & insertion fees by category

Coming soon

Noon

Referral & fulfillment fees for UAE and KSA

Coming soon

Walmart

Referral & Walmart Fulfillment Services fees

Coming soon

Shopify

Payment processing & subscription costs

Coming soon

AliExpress

Commission & logistics cost breakdown

Coming soon