Verified Mathematical Model & Formulation
CBM per Carton = Length (m) × Width (m) × Height (m) Total CBM = CBM per Carton × Total Packages Total CFT = Total CBM × 35.3147
Converts dimensions into meters, multiplies length × width × height to determine volume per individual box, then multiplies by the package count to obtain total shipment CBM and equivalent cubic feet.
Configurable Parameters & Standard Units
- Carton Length: (Default: 50 cm)
- Carton Width: (Default: 40 cm)
- Carton Height: (Default: 30 cm)
- Package Quantity: (Default: 100 count)
- Weight per Box: (Default: 12 kg)
Standard Worked Example & Practical Verification
Scenario: Shipping 120 cartons measuring 50 cm × 40 cm × 30 cm, weighing 12 kg each.
Practical Takeaway: This shipment is ideal for an LCL (Less than Container Load) booking, occupying ~22% of a standard 20-foot ocean container.
Frequently Asked Questions
What does CBM stand for in shipping?
CBM stands for Cubic Meter (m³), the universal metric unit used by international freight forwarders, airlines, and ocean carriers to calculate cargo volume and freight rates.
How many CBM fit into a 20ft and 40ft container?
A standard 20ft container has an internal volume of ~33 CBM (practical loading: 28-30 CBM). A 40ft container has ~67 CBM (practical: 56-58 CBM), and a 40ft High Cube (HC) has ~76 CBM (practical: 68 CBM).
What is LCL vs FCL?
LCL stands for Less than Container Load (cargo shares container space with other shippers and is charged per CBM or metric ton). FCL stands for Full Container Load (shipper rents the entire container at a flat rate).
How do you calculate CBM from inches?
Multiply Length (in) × Width (in) × Height (in), then divide the total cubic inches by 61,023.74 to obtain Cubic Meters (CBM).
How does CBM determine sea freight billing (Revenue Ton)?
In ocean LCL, carriers bill based on Weight or Measurement (W/M). 1 CBM equals 1,000 kg (1 MT). If your shipment is 4 CBM and weighs 2,500 kg, you are billed for 4 Revenue Tons because volumetric measurement exceeds weight.