Amazon FBA vs 3PL Fulfilment Calculator

Compare the estimated monthly cost of Amazon FBA against using a UK 3PL fulfilment partner like PackPro. Enter your monthly order volume, product details, size and return rate — the calculator outputs a side-by-side cost comparison, estimated monthly savings and gross margin after fulfilment for both options.

PackPro rates are based on our published tier pricing: from 90p pick start at Starter tier (0–250 orders/month) down to 60p at Enterprise (2,000+ orders/month). Amazon FBA fees use simplified published defaults by size band — small parcel, large letter, parcel up to 2 kg and parcel up to 5 kg — which you can override with your actual FBA fee. The calculator also estimates courier postage costs, storage and returns handling for both models.

This calculator is for guidance only. Amazon FBA fees vary by product size, weight, category, storage period and current Amazon fee schedules. Always verify current FBA fees in Seller Central before making operational decisions.