CBM Calculator | Mingsung International Logistics Online Tool for Ocean & Air Freight Chargeable Weight
— CBM CALCULATOR

Estimate Your Freight Basis Fast.

Volumetric weight is the key to freight calculation

— Volume / Volumetric Weight Calculator

Enter your carton dimensions
and instantly get CBM and your freight basis.

Ocean freight is priced by CBM (cubic meters); air freight and express are billed by volumetric weight. Switch quickly between three modes.

Ocean Freight Volume (CBM / Cuft)
cm
cm
cm
ctn
CBM · Cubic Meters
1.00
Cubic Meter
CUFT · Cubic Feet
35.30
Cubic Feet
— Formula Cuft = L×W×H(cm)×Qty×0.0000353
CBM = Cuft ÷ 35.315  ·  1 CBM ≈ 35.315 Cuft
20 ft Container
Loads approx. 26–28 CBM (918–988 cuft)
40 ft Container
Loads approx. 56–58 CBM (1977–2048 cuft)
Note: LCL (less-than-container-load) cargo is generally charged by "revenue ton" — the greater of volume (CBM) and weight (metric tons) is used as the freight basis.
Air Freight Volumetric Weight
cm
cm
cm
VOLUMETRIC WEIGHT
12.00
kilograms (kg)
— Formula Volumetric weight (kg) = L×W×H (cm) ÷ 6000
Air freight is charged on the greater of actual weight and volumetric weight (Chargeable Weight). Light, bulky cargo is usually billed by volumetric weight.
Express Volumetric Weight
cm
cm
cm
VOLUMETRIC WEIGHT
6.00
kilograms (kg)
— Formula International express volumetric weight (kg) = L×W×H (cm) ÷ 5000
Domestic express volumetric weight (kg) = L×W×H (cm) ÷ 6000
Billing rule: the greater of actual weight and volumetric weight applies; fractions of 1 kg are rounded up (e.g., 3.3 kg → 4 kg, 28.8 kg → 29 kg).

Chargeable weight is the basis of freight calculation — the greater of "actual gross weight" and "volumetric weight" determines what you pay.

CBM Formula

CBM = Length(m) × Width(m) × Height(m)

Example: 100cm × 80cm × 60cm = 1m × 0.8m × 0.6m = 0.48 CBM

Air Freight Chargeable Weight Formula

Volumetric weight = L(cm) × W(cm) × H(cm) ÷ 6000

Example: 100 × 80 × 60 ÷ 6000 = 80 kg (volumetric weight)

The greater of actual gross weight and volumetric weight is the chargeable weight

Standard Container Capacity Reference

  • 20 ft container (20GP): approx. 28 CBM, max payload 21.5 metric tons
  • 40 ft container (40GP): approx. 58 CBM, max payload 26 metric tons
  • 40 ft high cube (40HQ): approx. 67 CBM, max payload 26 metric tons
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