What is VGM and why is it required?

VGM stands for Verified Gross Mass - required by SOLAS since July 2016.

What is the difference between VGM Method 1 and Method 2?

Method 1 weighs the entire packed container. Method 2 sums all cargo items, packaging, dunnage, and container tare weight.

Where do I find the container tare weight?

The tare weight is stamped on the container door plate.

Who is responsible for submitting the VGM?

The shipper of record on the Bill of Lading is legally responsible for VGM submission.

What happens if VGM is not submitted or is incorrect?

The container will not be loaded, or may be held at the terminal. Fines can reach tens of thousands of dollars.

Does VGM apply to LCL shipments?

For LCL, the consolidator submits VGM. Individual shippers provide verified cargo weights to their forwarder.

Can I use the manufacturer's weight for Method 2?

Generally yes - certified manufacturer weights on commercially packaged goods are acceptable.

What is the Maximum Gross Mass (MGM)?

MGM is the maximum permitted gross weight of a loaded container, typically 30,480 kg for standard ISO containers.

VGM / SOLAS Weight Calculator

Calculate the Verified Gross Mass of your packed container - SOLAS-compliant, in seconds

Container type

Auto-filled tare - verify with container door plate

Container number (optional)

Cargo item kg / unit Qty Line kg

kg / unit

Qty

Packaging materials (kg)

Dunnage & lashing (kg)

Container tare weight (kg)

Enter cargo weights above to calculate VGM

SOLAS Methods

Two methods - one legal requirement

SOLAS regulations allow two approved methods for determining VGM. Method 2 is the most common for packed containers.

Method 1

Weigh the packed container

The entire packed and sealed container is placed on a calibrated, certified weighing device. The resulting weight is the VGM.

When to use

Large exporters with on-site certified scales, container freight stations (CFS)

Method 2 - Used by this calculator

Sum of all components

Add together the verified weights of all cargo items, packaging, dunnage and lashing, then add the container tare weight.

Formula

VGM = Cargo + Packaging + Dunnage + Container Tare

When to use

Most shippers and freight forwarders - no certified scale required at stuffing location

Both methods require a certified weighing process. Individual package weights from manufacturer data sheets are generally acceptable for Method 2 if items are commercially packaged.

Common Mistakes

What gets shippers fined or cargo refused

VGM errors are one of the top causes of container booking disputes and port holds.

Forgetting the container tare weight

The single most common error. Omitting tare means your declared VGM is 2–5 tonnes too low.

Missing dunnage and lashing materials

Timber, airbags, straps all add weight. For a typical 40ft container, dunnage can add 100–300 kg.

Late or missing VGM submission

VGM must be submitted before the documentation cutoff - often 24–48 hours before vessel departure. No exceptions.

Using uncertified weighing equipment

All weighing must be on calibrated, certified equipment. Guessing item weights is non-compliant.

Wrong shipper of record

The VGM declaration must be signed by the shipper of record on the Bill of Lading. Discrepancies cause customs holds.

Exceeding Maximum Gross Mass

VGM cannot exceed the container's MGM (typically 30,480 kg). Overweight containers are refused by carriers.

VGM / SOLAS - Frequently Asked Questions

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