All fleet managers have the responsibility of maximising on-road safety for their employees and other drivers. To achieve this effectively, they must consider many variables, with gross vehicle weight being one.

How Do You Calculate Gross Vehicle Weight?

In order to calculate gross vehicle weight it’s necessary to consult the gross vehicle weight rating (GVWR) system, which accounts for numerous vehicle categories distributed across eight weight classes. Within this framework, two key distinctions are made: the base kerb weight of the vehicle and the additional weight contributed by accessories like the cargo, driver, and passengers.

Light-duty vehicles

Class 1: 0-6,000 lbs

Class 2: 6,001-10,000 lbs

Class 3: 10,001-14,000 lbs

Medium-duty vehicles

Class 4: 14,001-16,000 lbs

Class 5: 16,001-19,500 lbs

Class 6: 19,501-26,000 lbs

Heavy-duty vehicles

Class 7: 26,001-33,000 lbs

Class 8: 33,001+ lbs


GVWR = trailer capacity + trailer weight

It is worth recognising that the weight capacity classifications provided above may vary slightly depending on location. Additionally, the trailer capacity refers to the weight specified by the manufacturer, indicating the maximum safe load the vehicle can bear. However, the total weight encompasses both the trailer and the cargo being transported.

In some instances, fleet managers may overlook the inclusion of accessories, which naturally contribute to the gross vehicle weight. Therefore, communication between fleet operators and loading personnel is vital. This guarantees awareness of the GVWR and consideration as to any additional weight from accessories or other contributions during the loading process.

How to Ensure Gross Vehicle Weight Compliance with MICHELIN Connected Fleet

While fleet managers play a significant role in upholding compliance with GVWR regulations, the responsibility is shared among other personnel. As such, it is recommended to establish comprehensive training programs that foster GVWR adherence. Employees involved in this process should be equipped with the knowledge to perform accurate calculations, accounting for factors such as driver and passenger weights, the regions in which the vehicle will operate, and whether the age of the vehicle needs to be considered.

We at MICHELIN Connected Fleet understand how difficult it can be for fleet managers to ensure GVWR compliance as well as perform other tasks simultaneously. It’s for this reason why we have developed a consultative approach to fleet management so that you can receive expert advice about the matter on demand. If you’re interested, then be sure to contact us for details on how our service can benefit your business or company today.