Volumetric WeightVolumetric Weight Calculator
Compare dimensional weight vs gross weight across air, courier and sea — instantly. Built for freight forwarders, Amazon/Shopify sellers, and procurement teams who need accurate chargeable weight before booking. Supports DHL, FedEx, UPS and IATA divisors (÷5000, ÷6000) plus CBM for sea LCL, in cm, m, in, ft or yd.
About the Volumetric Weight Calculator
Our free Volumetric Weight Calculator helps shippers, freight forwarders, and e-commerce sellers quickly find the dimensional (DIM) weight of any package using the divisors that real carriers apply on invoices — 5000 for air freight, 6000 for courier networks (DHL, FedEx, UPS, Aramex), and a true CBM figure for sea LCL. Enter the carton's length, width, height, quantity, and gross weight, then instantly compare gross vs volumetric to see the chargeable weight your carrier will bill.
Most international carriers compare the actual (gross) weight of a parcel with its volumetric weight and charge whichever is higher. That is because a truck, aircraft, or container runs out of space long before it runs out of payload — so lightweight but bulky cargo (pillows, lampshades, plastic housings, foam packaging) is priced by the room it occupies, not by what the scale shows.
The formula is the same everywhere: (Length × Width × Height) ÷ Divisor with dimensions in centimetres and the result in kilograms. A 60 × 40 × 40 cm carton, for example, works out to 19.2 kg on air freight (÷5000) and 16 kg on courier (÷6000). If the box actually weighs 12 kg, the carrier still bills 19.2 kg on an airway bill — which is exactly the kind of surprise this calculator helps you avoid before you book.
Use the tool while you are still designing the packaging or negotiating with your supplier. Shaving 2 cm off each side of a master carton can drop volumetric weight by 10–15 %, and choosing a courier with a ÷6000 divisor instead of ÷5000 saves another ~17 % on the same parcel. For full sea shipments, switch over to our CBM Calculator or the Container Capacity Calculator to plan loading efficiency at the container level.
The calculator is 100 % free, works on mobile and desktop, supports five measurement units (cm, m, in, ft, yd), and updates in real time as you type. No sign-up, no downloads — just accurate dimensional weight numbers you can paste straight into a quote or rate-card comparison.
Accurate across modes
Air, courier, and sea results in one place — no spreadsheet needed.
Save on shipping cost
Spot when a smaller carton or a different mode lowers your chargeable weight.
Works in any unit
Switch between cm, m, in, ft, and yd — perfect for global suppliers.
