What is CBM in freight shipping?

CBM stands for Cubic Meters. It is the international standard unit of measurement used to quantify the physical volume of cargo for ocean shipping (LCL/FCL), air freight, and road transport.

How do you calculate CBM for a carton or package?

For dimensions measured in centimeters (cm): CBM = (Length × Width × Height in cm) ÷ 1,000,000 × Quantity. For dimensions in inches: CBM = (Length × Width × Height in inches) ÷ 61,023.74 × Quantity. For dimensions in meters: CBM = Length × Width × Height (m) × Quantity.

How many CBM can fit into standard shipping containers?

A standard 20ft dry container accommodates approximately 28 to 30 CBM of packed cargo (nominal volume 33.2 CBM). A 40ft standard container fits approximately 56 to 58 CBM (nominal volume 67.7 CBM). A 40ft High Cube (40HQ) container fits approximately 68 to 70 CBM (nominal volume 76.3 CBM).

What is Volumetric Weight (Dimensional Weight) in Air Freight?

Volumetric weight is a pricing technique used by courier and airline carriers to charge for bulky, lightweight shipments. For air express (DHL/FedEx/UPS), the standard divisor is 5000 (Length × Width × Height in cm ÷ 5000). For standard air cargo, the divisor is commonly 6000 (1 CBM = 167 kg).

What is the difference between Actual Gross Weight and Chargeable Weight?

Actual Gross Weight is the true physical weight on a scale (including pallets and packaging). Chargeable Weight is whichever is greater between the Actual Gross Weight and the Volumetric Weight. Carriers charge freight based on the higher value.

freeCBMcalculator

Professional Freight Volume, Volumetric Weight & 3D Container Loading Calculator for Global Logistics

CBM (Cubic Meter) Calculation Utility

Calculate precise shipping volume (CBM / CFT), volumetric chargeable weight (Air & Ocean), and simulate 2D/3D container loading arrangements for standard 20ft, 40ft, 40HQ, and 45HQ freight containers. Designed for freight forwarders, exporters, Amazon FBA sellers, and cross-border logistics specialists.

Standard Freight Volume & Weight Formulas

CBM (Centimeters): Length (cm) × Width (cm) × Height (cm) ÷ 1,000,000 × Quantity
CBM (Inches): Length (in) × Width (in) × Height (in) ÷ 61,023.74 × Quantity
CFT (Cubic Feet): CBM × 35.3147
Air Express Volumetric Weight: Length (cm) × Width (cm) × Height (cm) ÷ 5,000 (Courier ratio 1:200)
Standard Air Cargo Volumetric Weight: Length (cm) × Width (cm) × Height (cm) ÷ 6,000 (1 CBM = 167 KG)
Ocean LCL W/M Revenue Ton: 1 CBM = 1,000 KG (Whichever yield higher revenue)

Standard Ocean Container Capacity Guide

Container Type	Internal Dimensions (L×W×H)	Max Gross Volume	Practical Usable CBM	Max Payload Capacity
20ft Standard (20GP)	5.89m × 2.35m × 2.39m	33.2 CBM	28 - 30 CBM	21,800 kg / 48,000 lbs
40ft Standard (40GP)	12.03m × 2.35m × 2.39m	67.7 CBM	56 - 58 CBM	26,680 kg / 58,800 lbs
40ft High Cube (40HQ)	12.03m × 2.35m × 2.69m	76.3 CBM	68 - 70 CBM	26,580 kg / 58,600 lbs
45ft High Cube (45HQ)	13.55m × 2.35m × 2.69m	86.0 CBM	78 - 80 CBM	27,800 kg / 61,280 lbs

Frequently Asked Questions (FAQ)

How is CBM calculated for mixed carton sizes?

Calculate the individual CBM of each carton type by multiplying its length, width, and height (in meters). Then multiply by the quantity for that package line, and sum all package lines together to get the total shipment CBM.

When should I switch from LCL to FCL container booking?

Generally, when your total cargo volume reaches 13 to 15 CBM, booking a dedicated 20ft FCL container is more cost-effective and provides greater cargo security than LCL consolidation, which carries destination terminal handling and deconsolidation fees.