Amazon UK FBA Calculator

Enter your product's size, weight and price in cm, kg and £ to get UK FBA fulfilment, referral, storage and VAT, and profit per unit.

Your numbers

Product as it ships

Length

Packaged, in cm. Any order works: the sides are sorted for you.

Width

Height

Weight unit

Unit weight

The packaged unit on a scale.

Sale

Selling price (including VAT)

The price the buyer pays on amazon.co.uk.

Amazon fee category

Use Low-Price FBA rates when eligible

Most products at £20 or less (£10 in beauty, business, office, grocery, books, device accessories and kitchen) that fit a small parcel up to 400 g.

Fulfilment fee period

Add the 1.5% fuel and logistics surcharge

Applied to UK FBA fulfilment fees since 17 Apr 2026.

Add the 2% digital services fee

Amazon adds 2% to selling and FBA fees on UK store sales for UK-established sellers (and most others).

VAT

You're VAT-registered

If on, 20/120 of the price goes to HMRC as output VAT.

You pay VAT on Amazon's fees and can't reclaim it

Amazon quotes UK fees excluding VAT. Turn on if your invoices add 20% VAT that you can't claim back.

Your costs per unit

Product cost

Excluding any import VAT you reclaim.

Freight and prep to Amazon per unit

Average months each unit sits in storage

months

Storage months

Other costs per unit

Ads, inserts, returns you absorb.

Your result · updates as you type

Profit per unit

£5.58

33.5% of your ex-VAT revenue of £16.66. Amazon takes £6.38 in referral, fulfilment and storage fees plus the digital services fee.

Size tier: Small parcel
FBA fulfilment fee: £3.09
Referral fee: £3.00

Where the selling price goes

VAT to HMRC

£3.33

Referral fee

£3.00

Fulfilment

£3.09

Storage

£0.16

DST and fee VAT

£0.13

Your costs

£4.70

Profit

£5.58

Breakdown

Sides, longest to shortest: 25 × 15 × 8 cm
Dimensional weight (L × W × H ÷ 5,000): 600 g
Shipping weight used (greater of unit and dimensional): 600 g
Selling price (incl. VAT): £19.99
Output VAT (price × 20/120): −£3.33
Referral fee: 15% of the total sales price: −£3.00
Fulfilment fee (Small parcel, 400 g+ up to 900 g): −£3.04
Fuel and logistics surcharge (1.5%): −£0.05
Storage: 0.106 cu ft × £0.76 × 2 months: −£0.16
Digital services fee (2% of Amazon fees): −£0.13
Product cost, freight and other: −£4.70
Profit per unit: £5.58

How UK FBA profit is worked out

UK FBA uses its own size tiers (envelopes and parcels, priced in grams and kilograms), its own referral fee table, and two charges the US calculator doesn't have: VAT and the 2% digital services fee Amazon adds to selling and FBA fees for most UK sellers. Rates last checked 30 Sep 2026, against the European FBA rate card effective 1 Jul 2026.

Worked example (the calculator's starting values)

Package: 25 × 15 × 8 cm, 450 g, £19.99, Kitchen
Size tier: Small parcel, 600 g shipping weight (dimensional weight beats unit weight)
Output VAT (VAT-registered): £19.99 × 20/120 = £3.33
Referral fee: 15% × £19.99 = £3.00
Fulfilment fee: £3.04, plus £0.05 (1.5% fuel surcharge)
Storage + digital services fee: £0.16 + £0.13

Profit £5.58 per unit, 33.5% of ex-VAT revenue of £16.66.

At £24.99 instead of £19.99 (same product), profit rises to £8.98, a 43.1% margin, since the fulfilment fee and VAT-exclusive referral fee stay close to flat while revenue rises.

What's different from the US calculator

Low-Price FBA. Products at £20 or less (£10 in some categories, like Kitchen) that fit a small parcel up to 400 g get a cheaper Low-Price FBA rate. The calculator applies it automatically when your product qualifies.
VAT. If you're VAT-registered, 20/120 of the price (assuming standard-rated goods and a UK-inclusive price) goes to HMRC before anything else. Turn this off if you're not registered or sell zero-rated goods.
Digital services fee. Amazon adds 2% to selling and FBA fees for UK-established sellers, and most others, on UK store sales.
VAT on Amazon's own fees. Amazon quotes UK fees excluding VAT. If your invoices add 20% VAT you can't reclaim, turn that toggle on.

Limits to know

Amazon's rate card doesn't state how part-kilogram oversize weights round, so this calculator rounds up to the next whole kilogram for oversize tiers; confirm the exact fee in Amazon's Revenue Calculator before relying on it for a borderline weight. It also doesn't add the Overmax handling fee some very large items carry.

Questions people ask

How much does Amazon UK FBA cost?

It depends on size, weight, category and price. This calculator adds the fulfilment fee, referral fee, storage, VAT and the 2% digital services fee for your product's numbers.

What is Low-Price FBA in the UK?

A cheaper fulfilment rate for products priced £20 or less (£10 in some categories) that fit a small parcel weighing up to 400 g. The calculator applies it automatically when your product qualifies.

What is Amazon's digital services fee?

A 2% charge Amazon adds to selling and FBA fees on UK store sales, for UK-established sellers and most others, introduced to offset the UK's digital services tax.

Does this calculator include VAT?

Yes, as an editable option. It can subtract output VAT on the price if you're VAT-registered, and add VAT on Amazon's own fees if your invoices charge it and you can't reclaim it.

Is this the same rate card as the US FBA calculator?

No. UK FBA uses its own size tiers (envelopes and parcels in cm and kg), referral rates and storage rates. Use the US FBA calculator for US sales.

Last reviewed 30 September 2026.

Sources: Amazon: Selling fees UK (referral fees, FBA rate card, storage) · Amazon Seller Central: Digital services fee (UK) · Amazon: 2026 US FBA fulfillment fee changes