Amazon FBA Calculator UK
Work out your Amazon UK fees before you list. Enter your selling price, product cost, category, and size to see referral fees, FBA fulfilment costs, profit per unit, and your break-even price — instantly.
Frequently asked questions
What fees does Amazon charge UK sellers?
Amazon UK charges two main fees: a referral fee (a percentage of the sale price, typically 15% for most categories but 7% for electronics and 8% for grocery) and, if you use FBA, a fulfilment fee based on the size and weight of your item. FBA fulfilment fees in the UK range from approximately £1.80 for small light items to £6.50+ for oversize products. There is also a monthly storage fee charged per cubic foot of space used in Amazon's fulfilment centres.
What is the difference between FBA and FBM on Amazon UK?
FBA (Fulfilled by Amazon) means Amazon stores, packs, and ships your products. You pay fulfilment and storage fees, but your listings become Prime-eligible and Amazon handles customer service and returns. FBM (Fulfilled by Merchant) means you handle storage, packing, and shipping yourself — you avoid FBA fees but must manage logistics. FBA generally leads to higher sales volumes due to Prime eligibility, but FBM can be more profitable for large, heavy, or slow-moving items where FBA fees would be prohibitive.
How can I reduce my Amazon FBA fees?
To reduce FBA fees: (1) Optimise your product packaging to fit into a smaller size tier — even a few millimetres can move you from large to standard. (2) Manage inventory levels to avoid long-term storage fees. (3) Consider FBM for slow-moving or seasonal stock. (4) Use Amazon's Small and Light programme if your items qualify (under 150g, under £10). (5) Negotiate supplier costs so your margin stays healthy even after fees.
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