Heavy-Duty Towing & Payload Calculator
How to use the Heavy-Duty Towing & Payload Calculator
- Enter your truck GVWR and curb weight from the door sticker or specs.
- Add passenger and cargo weight already in the truck.
- Set tongue/pin weight percent: ~15% for bumper pull, ~20% for fifth wheel/gooseneck.
- Review max safe trailer weight and remaining payload capacity.
Why calculate locally?
Your inputs for Heavy-Duty Towing & Payload Calculator are processed entirely in browser memory. Financial and personal numbers are never sent to a server, stored in a database, or retained after you close the tab. This makes local calculation ideal for sensitive payroll, pricing, and business data.
Frequently asked questions
What tongue weight percent should I use?
Use about 15% for conventional bumper-pull hitches and about 20% for fifth wheel or gooseneck setups. Always verify against your hitch and vehicle ratings.
Does this replace manufacturer tow ratings?
No. This is a quick estimate. Always follow your vehicle, hitch, and trailer manufacturer limits.