Amazon FBA Calculator
Free Amazon FBA fee calculator. Pick a size tier and weight to estimate FBA fulfillment fees, referral fees and monthly storage so you know your true Amazon selling cost.
Product
US fulfillment fees. Approximate — confirm exact fees in Seller Central.
FBA Fees
Per-Unit Fee Breakdown
Fees are US estimates for guidance only. Always verify exact fees in Amazon Seller Central.
How it works
Pick a size tier
Choose your product's Amazon FBA size tier to load the right fulfillment fee.
Add volume & time
Enter dimensional volume in cubic feet and how long units sit in storage.
See all FBA fees
Referral, fulfillment and storage fees per unit and across all units.
Frequently asked questions
How does the FBA calculator estimate fulfillment fees?
It uses Amazon's standard US FBA fulfillment fee schedules by size tier (standard, large, small/light, oversize) and dimensional weight, plus the referral fee percentage for your product category.
Does the FBA calculator include storage fees?
Yes. It estimates monthly storage based on your size tier, unit volume and the number of months in storage, and flags long-term storage risk for slow movers.