Towing Capacity & Payload Calculator Formulas Used

Maximum Payload = GVWR – Curb Weight

Towing Capacity = GCWR – Curb Weight

In these formulas:

• GVWR is the maximum weight a vehicle is rated to safely carry, including its own weight.
• Curb Weight is the weight of the truck when it’s idle and without cargo or passengers.
• GCWR is the total weight of a loaded truck and its towed load.

Examples of Maximum Payload & Towing Capacity

GVWR (lbs)	Curb Weight (lbs)	GCWR (lbs)	Maximum Payload (lbs)	Towing Capacity (lbs)
80000	25000	130000	55000	105000
75000	24000	125000	51000	101000

Where to Find Your Gross Vehicle Weight Rating (GVWR)

The GVWR of your truck can be found in one of the following locations:

1. Owner’s Manual: The owner’s manual that came with your semi-truck is a valuable resource. It often includes important information about the vehicle, including the GVWR.
2. Vehicle Identification Number (VIN) Plate: The GVWR may be listed on a metal plate or sticker located on the driver’s side door frame or inside the door jamb. This plate often contains various vehicle specifications, including the GVWR.
3. Manufacturer’s Website: Some truck manufacturers provide access to vehicle specifications and documentation on their official websites. You can search for your specific make and model to find the GVWR.
4. Certification Label: In the cab or engine compartment of your semi-truck, there may be a certification label that displays the GVWR. It’s typically a white label with black or dark-colored text.
5. Contact the Manufacturer or Dealer: If you’re unable to locate the GVWR using the above methods, you can contact the manufacturer of your semi-truck or the dealership where you purchased it. They should be able to provide you with the necessary information.

It’s important to note that the location of the GVWR label may vary depending on the make and model of your semi-truck, so it’s a good idea to check multiple locations if you’re having trouble finding it. Additionally, the GVWR can vary from one truck to another, so be sure to reference the correct vehicle when looking for this information.

Where to Find Your Curb Weight

The curb weight of your semi-truck can be found on one of the following locations:

1. Owner’s Manual: The owner’s manual that came with your semi-truck often includes information about the vehicle’s curb weight. It may provide specifications for different trim levels and configurations.
2. Vehicle Identification Number (VIN) Plate: Look for a metal plate or sticker on the driver’s side door frame or inside the driver’s side door jamb. This plate may contain various vehicle specifications, including the curb weight.
3. Certification Label: Check the certification label, usually located in the cab or engine compartment. This label often displays the curb weight among other vehicle details.
4. Manufacturer’s Website: Some truck manufacturers provide access to vehicle specifications and documentation on their official websites. You can search for your specific make and model to find the curb weight.
5. Contact the Manufacturer or Dealer: If you have difficulty finding the curb weight using the above methods, you can contact the manufacturer of your semi-truck or the dealership where you purchased it. They should be able to provide you with the necessary information.

Remember that the location of the curb weight information may vary depending on the make and model of your semi-truck, so be sure to check multiple locations if needed. The curb weight can differ based on the specific configuration and optional features of your vehicle, so make sure you reference the correct one for your particular truck.

Where to Find Your Gross Combined Weight Rating (GCWR)

The Gross Combined Weight Rating (GCWR) of a semi-truck is typically provided by the vehicle manufacturer and can be found in various locations:

1. Owner’s Manual: The owner’s manual that came with your semi-truck is a valuable resource for finding the GCWR. It often includes detailed specifications for the vehicle, including the GCWR.
2. Vehicle Identification Number (VIN) Plate: The GCWR may be listed on a metal plate or sticker located on the driver’s side door frame or inside the driver’s side door jamb. This plate often contains various vehicle specifications, including the GCWR.
3. Certification Label: In the cab or engine compartment of your semi-truck, there may be a certification label that displays the GCWR. It’s typically a white label with black or dark-colored text and includes important vehicle information.
4. Manufacturer’s Website: Some truck manufacturers provide access to vehicle specifications and documentation on their official websites. You can search for your specific make and model to find the GCWR.
5. Contact the Manufacturer or Dealer: If you have difficulty finding the GCWR using the above methods, you can contact the manufacturer of your semi-truck or the dealership where you purchased it. They should be able to provide you with the necessary information.

The GCWR represents the maximum allowable weight for both the semi-truck and any trailers it may tow, including cargo. It is an important specification for ensuring safe and compliant operation of your commercial vehicle, so make sure to reference the correct information for your specific vehicle configuration.