What dimensional divisor does Amazon FBA use?

Amazon FBA uses a dimensional divisor of 139 for calculating billable dimensional weight in cubic inches: (Length × Width × Height) / 139.

What are the dimensions for Small standard-size in Amazon FBA?

To qualify for Small standard-size, the packaged unit must measure at most 15 inches on its longest side, 12 inches on its median side, 0.75 inches on its shortest side, and weigh at most 16 ounces (1.0 lb).

How do I request an Amazon Cubiscan remeasurement?

Open Seller Central, navigate to Help > Contact Us > FBA Issue > Remeasure FBA Product and provide the ASIN/FNSKU. Amazon warehouse teams will perform a physical scan using Cubiscan.

Amazon FBA Dimension & Tier Checker

FBA Size Tier & Fee Calculator

Check your packaged product dimensions against Amazon's official FBA size thresholds. Detect Cubiscan scanner creep and verify if you are overpaying fulfillment fees.

Product Dimensions & Weight (Packaged)

Package Dimensions (Inches)

Length

Width

Height

Scale Weight (Pounds)

lbs

Monthly Unit Sales

units

Current Billed FBA Fee Per Unit (Optional)

Enter the fee shown in your Amazon Fee Preview report to spot overcharges.

Calculated FBA Tier Divisor 139

Official Size Category:

Expected Domestic Fee: / unit

Cubic Inches:

Dimensional Weight (LxWxH/139):

Billable Shipping Weight:

Audit Complete Fee Preview File ($29)

Cubiscan Remeasurement Ticket Template

Copy and paste into Seller Central > Help > Remeasure FBA Product