Total weight: Weight of the entire package with packaging
Volume weight: Volumetric weight(kg) = Length (cm) × Width (cm) × Height (cm) ÷ 5000

How shipping fee are determined varies in shipping carriers.

Shipping fee based on the total weight
・Japan Post (EMS/AIR/SAL/Surface Mail)
・Taiwan FamilyMart Pickup Service
・tenso Air Delivery Taiwan (FamilyMart Pickup/Home delivery)

Shipping fee based on either total weight or volume weight(heavier one is applied)
・DHL
・ECMS

*tenso handling fee is calculated based on the total weight