Amazon calculators
Amazon FBAReferral, fulfillment & storage fees from the official 2026 rate card, with auto size-tier detection.Break-Even ACOSBreak-even ACOS, target ACOS for your desired net margin, and maximum cost-per-click.Size Tier CheckerYour 2026 Amazon size tier, dimensional weight, and exactly what to shrink to drop a tier.Amazon FBA UKAmazon UK referral, fulfilment by size band, storage and VAT in GBP — profit, margin, ROI and break-even.Amazon FBA EU (DE)Amazon EU (DE) referral, fulfilment by size band, storage and VAT in EUR — profit, margin, ROI and break-even.Amazon FBA CanadaAmazon Canada referral, fulfilment by size band, storage and GST/HST in CAD — profit, margin, ROI and break-even.Amazon FBA AustraliaAmazon Australia referral, fulfilment by size band, storage and GST in AUD — profit, margin, ROI and break-even.Amazon FBA IndiaAmazon India referral, fulfilment by size band, storage and GST in INR — profit, margin, ROI and break-even.Amazon FBA JapanAmazon Japan referral, fulfilment by size band, storage and Consumption tax in JPY — profit, margin, ROI and break-even.