CBM Calculator for Shipping
Calculate cubic meters, volumetric weight, and container capacity for shipping logistics
Carton Properties
Enter the external dimensions of one carton
Gross weight including packaging
Total number of identical cartons
Calculation Results
Volume Conversions
Weight Comparison
Shipping Factor Settings
Standard is 5000 cm³/kg, but may vary by carrier
Weight or Measurement (W/M) Rule
You'll be charged based on volumetric weight since it's higher than actual weight.
Container Analysis
Note: The calculated number is an approximation. Due to packaging arrangement, actual loading may result in less space utilization.
Quick Reference
Length × Width × Height (in meters)
L × W × H × Qty ÷ Shipping Factor
- • 1 m³ = 35.31 ft³
- • 1 m³ = 61,024 in³
- • 1 kg = 2.205 lbs
Container Types
Tip: High cube containers provide 13% more volume for light, bulky cargo.
Understanding CBM and Shipping Calculations
What is CBM?
CBM stands for Cubic Meters, a metric unit measuring the volume your shipment occupies. It's calculated by multiplying length × width × height in meters.
Why CBM Matters
- •Determines shipping costs for freight
- •Helps plan container loading efficiency
- •Required for customs and logistics documentation
- •Enables accurate freight cost estimation
Volumetric Weight Calculation
Volumetric Weight = L × W × H × Qty ÷ Shipping Factor
- L, W, H: Dimensions in centimeters
- Qty: Number of identical cartons
- Shipping Factor: Usually 5000 cm³/kg for air freight
- Result: Weight in kilograms for pricing
W/M Rule: You pay for whichever is higher - actual weight or volumetric weight.
Step-by-Step Example
Example Shipment
Carton dimensions: 50 × 80 × 60 cm
Weight per carton: 35 kg
Quantity: 20 cartons
Container: 40′ Standard
Calculations
CBM per carton: 0.50 × 0.80 × 0.60 = 0.24 m³
Total volume: 0.24 × 20 = 4.8 m³
Total weight: 35 × 20 = 700 kg
Volumetric weight: 50×80×60×20÷5000 = 960 kg
Chargeable: 960 kg (higher value)