VGM / SOLAS Weight Calculator
Calculate the Verified Gross Mass of your packed container - SOLAS-compliant, in seconds
Auto-filled tare - verify with container door plate
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.
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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