CBM Calculator
Calculate cubic meters for shipping, freight, and logistics. Add multiple items to get total cargo volume. All local.
| # | Length | Width | Height | Qty | CBM | kg (Vol. Wt) |
|---|
Volume weight = CBM × 167 (standard DIM factor for air freight). 1 CBM = 167 kg volumetric weight.
About this tool
The CBM Calculator helps shippers, freight forwarders, and e-commerce sellers calculate cargo volume in cubic meters (CBM). CBM is the standard unit used by shipping carriers (sea and air freight) to determine freight charges. Knowing your total CBM upfront lets you accurately quote shipping costs, compare carrier rates, and optimize container loading.
This tool supports multiple items — add rows for each package in your shipment — and calculates volumetric weight using the standard DIM factor of 167 kg/CBM (the standard for air freight). Dimensions can be entered in centimeters, meters, inches, or feet. All calculations run locally in your browser.
How to use
- Select your unit. Choose cm, m, inch, or ft from the unit dropdown for each measurement type.
- Enter dimensions. Input length, width, height, and quantity for each package. Click "+ Add Item" to add more packages for multi-item shipments.
- View totals. Total CBM and volumetric weight update instantly as you enter your dimensions. Use these figures to get accurate freight quotes from carriers.
Frequently asked questions
What is CBM and how is it calculated?
CBM (Cubic Meter) = Length × Width × Height (all in meters). It's the standard unit for measuring cargo volume in shipping. One CBM = 1,000,000 cubic centimeters.
What is volumetric weight?
Volumetric weight = CBM × 167 (air freight DIM divisor). Carriers charge based on whichever is greater — actual weight or volumetric weight. This prevents light-but-bulky cargo from being undercharged.
Can I enter dimensions in different units?
Yes. Support for cm, m, inches, and feet is built in. The tool automatically converts to meters for CBM calculation.
Is my data stored or shared?
No. All calculations happen locally in your browser. Your cargo dimensions never leave your device.