Enter your costs, price, and package size. The calculator works out the Amazon.com size tier, referral fee, FBA fulfillment fee with the fuel surcharge, storage, aged-inventory surcharge and inbound placement automatically — then shows your real profit per unit.
Fee data: Amazon.com Seller Central · 2026 fees (non-peak Jan 15–Oct 14, peak Oct 15–Jan 14) · 3.5% fuel surcharge since Apr 17, 2026 · verified against Amazon's Revenue Calculator 13 Oct 2026 — every auto fee can be overridden.
1Price & product cost
$
$
$
US import duties & tariffs, packaging, inserts, etc.
$
units
Freight from supplier to Amazon, per unit.
$
3PL or prep-center handling you pay outside Amazon. (Amazon's own storage is calculated below.)
2Package size & weight
in
in
in
lb
Small standard and Extra-large 150+ lb are billed on unit weight; every other tier on the greater of unit or dimensional weight (L × W × H ÷ 139). Bulky and Extra-large count width and height as at least 2 in.
3Category, product type & season
Minimum referral fee $0.30 (none for Grocery, Media, Video Games, Consoles and Gift Cards).
%
Set to today's period on load. Peak fulfillment fees run Oct 15 – Jan 14; peak storage runs Oct – Dec.
4Storage, inbound & returns
mo
Avg. months a unit sits in FBA. Aged surcharge starts at day 181.
Account-level ratio. New sellers & under 25 ft³ are exempt.
%
Placement uses the middle of Amazon's published range (it varies by destination). Refunds: you lose the fulfillment fee and the refund admin fee (20% of referral, max $5); assumes returned units are resellable.
Standard-size: small per-unit discount. Bulky: avoids Amazon's packaging fee.