Towing Capacity Calculator

Estimate towing capacity, trailer weight margin, payload remaining, tongue weight, GCWR usage, GVWR usage, and safe towing range. Use this towing capacity calculator to compare your vehicle, passengers, cargo, trailer, and hitch setup.

Calculate Towing Capacity

Available Tow Capacity = Lower of Tow Rating and GCWR Limit, adjusted for passengers, cargo, hitch weight, and safety margin.
Your result will appear here.

How the towing capacity calculator works

Available towing capacity:
Uses the vehicle tow rating, GCWR, curb weight, passengers, cargo, hitch weight, and safety margin to estimate practical towing capacity.

Payload remaining:
Calculates how much payload is left after passengers, cargo, hitch weight, and trailer tongue weight.

Tongue weight check:
Estimates tongue weight from loaded trailer weight and tongue weight percentage.

GCWR check:
Compares the combined vehicle and trailer weight to the gross combined weight rating.

Why use a towing capacity calculator?

A towing capacity calculator helps estimate whether a vehicle and trailer combination may be within common weight limits.

It can help check tow rating, payload, tongue weight, GVWR, GCWR, safety margin, and loaded trailer weight before towing.

What your result means

Your result shows estimated available towing capacity, loaded trailer weight, towing margin, payload remaining, tongue weight, GCWR remaining, GVWR remaining, and safety-adjusted capacity. These are estimates based on the values you enter.

Towing capacity calculator formulas

Frequently asked questions

How do you calculate towing capacity?

Start with the manufacturer tow rating, then check GCWR, GVWR, payload, passenger weight, cargo weight, hitch weight, tongue weight, and safety margin.

Does payload affect towing capacity?

Yes. Passengers, cargo, accessories, and tongue weight use payload and can reduce how much trailer weight can be safely carried.

What is tongue weight?

Tongue weight is the downward force the trailer places on the hitch. It is commonly estimated as a percentage of loaded trailer weight.

What is GCWR?

GCWR stands for gross combined weight rating. It is the maximum allowed combined weight of the loaded tow vehicle and loaded trailer.