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CBM Shipping Calculator

Free CBM calculator for freight shipping & cargo containers. Easily convert dimensions (cm, inches, ft) to cubic meters (m³), calculate total CBM & container fit.

David Miller, CPA
Formula Verified & Maintained by:David Miller, CPA

CPA, M.S. Finance (NYU Stern) • Lead Financial Analyst & Tax Technology Editor

Peer-Reviewed Algorithm

Interactive Calculator

1. Provide Details

cm
cm
cm
kg

2. Output Results

Total Volume1.2000 m³ (CBM)
Total Volume42.38 ft³ (CFT)
Single Box Volume0.0600 m³
Total Weight300.0 kg

How to Calculate: Formula & Steps

Convert all box dimensions to meters, multiply them to get the volume of a single box, and then multiply by the total number of boxes to get the total CBM.

Formula Used:CBM = [Length (m) × Width (m) × Height (m)] × Quantity

Step-by-Step Calculation Example

If you have 10 boxes, each measuring 50 cm × 40 cm × 30 cm: 0.5m × 0.4m × 0.3m = 0.06 CBM. Total CBM = 0.06 × 10 = 0.6 CBM.

Common Mistakes to Avoid

  • Mixing different dimension units without proper conversion.

Practical Use Cases

  • LCL shipping cargo
  • Container packing planning

Expert Tips

  • Add a 5% spacing allowance for carton stacking gaps.

CBM Freight Shipping & Container Volume Calculation Guide

In international ocean and air freight logistics, CBM (Cubic Meters / m³) is the primary unit of measurement used to calculate cargo volume, determine container space utilization, and establish chargeable dimensional freight weight.

Whether you are shipping Less than Container Load (LCL), Full Container Load (FCL), or palletized air cargo, use our CBM Shipping Calculator to compute volume across centimeters, inches, feet, and total carton counts.

How to Calculate CBM from Any Unit of Measurement

From Centimeters (cm)

CBM = (L × W × H) ÷ 1,000,000

Example: 50×40×30 cm = 0.06 CBM
From Inches (in)

CBM = (L × W × H) ÷ 61,023.74

Example: 48×40×51 in = 1.60 CBM
From Feet (ft)

CBM = (L × W × H) ÷ 35.3147

Example: 4×4×4 ft = 1.81 CBM

Standard Pallet & Crate Inch-to-CBM Reference

Cargo / Pallet TypeDimensions (Inches)Total Cubic InchesVolume in CBM
Standard GMA Pallet (Loaded)48″ × 40″ × 51″97,920 in³1.605 CBM
Oversized Machinery Crate67″ × 41″ × 59″162,073 in³2.656 CBM
High-Cube Master Skid68″ × 70″ × 96″456,960 in³7.488 CBM
Standard Master Parcel Carton24″ × 18″ × 16″6,912 in³0.113 CBM

Standard Ocean Container Capacity Reference Table

Container TypeInternal Dimensions (L × W × H)Max Volume CapacityUsable Practical CBM
20ft Standard (20GP)5.89m × 2.35m × 2.39m33.2 CBM28 – 30 CBM
40ft Standard (40GP)12.03m × 2.35m × 2.39m67.6 CBM58 – 62 CBM
40ft High Cube (40HQ)12.03m × 2.35m × 2.69m76.2 CBM68 – 70 CBM

Disclaimer

This calculation tool is provided for educational and informational estimation purposes only. Results are based on mathematical formulas and user-supplied parameters. They do not constitute formal underwriting, financial, tax, engineering, or legal determinations.

Frequently Asked Questions About CBM Shipping Calculator

What is CBM in shipping and how is it calculated?
CBM stands for Cubic Meter (m³), the international metric volume unit used to measure freight cargo for ocean and air shipping. It is calculated using the formula: Length (m) × Width (m) × Height (m) × Quantity. Estimate container volume easily with our CBM Shipping Calculator.
How to calculate CBM from dimensions in centimeters (cm)?
To calculate CBM from centimeters, multiply Length (cm) × Width (cm) × Height (cm), then divide the total result by 1,000,000. For example, a box measuring 50 cm × 40 cm × 30 cm yields 60,000 ÷ 1,000,000 = 0.06 CBM.
How to calculate CBM from dimensions in inches?
To convert dimensions in inches directly to CBM, multiply Length (in) × Width (in) × Height (in), then divide the result by 61,023.74 (cubic inches per cubic meter). For example, a 20 in × 15 in × 12 in box equals 3,600 ÷ 61,023.74 = 0.059 CBM.
How many CBM fit into standard 20ft and 40ft ocean shipping containers?
A standard 20ft ocean container has a usable capacity of ~28 to 30 CBM. A 40ft container holds ~56 to 58 CBM, while a 40ft High Cube (HC) container fits up to ~65 to 68 CBM.
What is volumetric weight (chargeable weight) in CBM shipping?
For air cargo, 1 CBM equals 167 kg of volumetric weight. For ocean freight (LCL), 1 CBM equals 1,000 kg. Freight carriers bill based on whichever is higher between actual gross weight and volumetric weight.
What does 0.4 CBM or 0.6 CBM mean for small freight shipments?
A 0.4 CBM shipment represents 0.4 cubic meters (approx 14.1 cubic feet, or about 8 to 10 medium courier boxes). For air shipping, 0.4 CBM equals roughly 66.8 kg of volumetric weight. A 0.6 CBM package represents ~21.2 cubic feet (or 100 kg volumetric weight). Calculate exact carton fits with our CBM Shipping Calculator.
Is CBM the same as m³ (cubic meters)?
Yes. CBM is the global logistics abbreviation for cubic meters (m³). 1 CBM = 1 m³ = 35.3147 cubic feet = 61,024 cubic inches.

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