Amazon FBA Calculator UK

A UK FBA fee is the fulfillment fee for your size tier and billed weight, plus a 1.5% fuel and logistics surcharge on that fee, plus the category referral fee, plus monthly storage. Amazon UK sorts a unit into envelope, parcel or one of 7 oversize tiers, then reads a weight band inside it: the ladder starts at £1.83 and reaches £3.58 at the top of Standard parcel. Envelopes bill unit weight only; parcels and oversize bill whichever is greater, unit or dimensional weight (length × width × height ÷ 5000). Items at or below £20.00 are fulfilled on the cheaper Low-Price FBA ladder instead, which ignores dimensional weight. Storage is charged per cubic foot per month and rises from £0.76 to £1.51 in the October to December peak. All figures verified against Amazon's rate card effective 2026-07-01.

Yes, each on its own page. Amazon UK is at /fba-calculator/uk, which reads the UK rate card: envelope, parcel and oversize tiers, Low-Price FBA, dimensional weight on the UK divisor, the fuel and logistics surcharge, and storage that rises in the October to December peak. Amazon India is at /fba-calculator/india, which reads the India rate card: price-banded referral including the zero-referral band, the closing fee, pick and pack, and storage. India's weight handling is not priced on that page and it says so beside the result. Each page calculates in that marketplace's own currency and units, and the switcher above the calculator moves between them.

It includes the four costs that decide FBA profitability: the referral fee (category percentage of selling price versus the marketplace minimum), the FBA fulfillment fee (from auto-detected size tier and billable weight), monthly storage cost (cubic volume × blended rate × days stored), and optional PPC spend as a percentage of price. It does not model VAT/GST settlement, peak-season or aged-inventory surcharges, or removal fees. Confirm those in Seller Central before finalising a purchase order.

Amazon's official Revenue Calculator is accurate but requires you to look up one ASIN at a time, per marketplace. This calculator needs no login and no ASIN: you can stress-test a product idea before it exists on Amazon, switch instantly between US, UK, and India fee schedules, and model PPC spend and monthly projections that Amazon's tool does not include. Use this one to shortlist products fast, then validate the finalists against Amazon's live fee preview.

FBA fees are based on size tier and billable weight, whichever is higher between actual weight and dimensional weight (length × width × height ÷ 139 for US in inches; ÷ 5000 for UK and India in cm). Each tier is a weight ladder rather than a single price, so crossing a tier boundary can move the fee sharply. The three marketplaces differ structurally: the US prices by size tier and weight, and from January 2026 also by selling-price band; the UK prices by envelope or parcel tier and then by weight band inside it; India prices by weight band, shipping distance and seller programme tier. This calculator detects your tier automatically but applies simplified per-tier rates, so its fulfillment figure is an estimate rather than a quote.

Target at least 20% net margin after all fees and product cost, before PPC spend. Margins below 15% leave insufficient room for advertising, returns, and fee changes. Use the PPC toggle in this calculator to model your ad spend impact.