Weight calculator

RV Payload Calculator

Estimate how much rated payload remains after people, cargo, hitch or tongue weight and added equipment. Use the certification label and manufacturer ratings for your exact vehicle or RV.

Use the payload/cargo figure from the vehicle label when available.
Examples: bed cover, racks, tool boxes or aftermarket equipment.
Payload used—
Remaining payload—
Capacity used—

Formula: remaining payload = rated payload − occupants − cargo − tongue/pin/hitch load − installed accessories. This is a planning aid, not a substitute for certified scale weights, axle ratings, tire ratings, GVWR, GCWR or manufacturer instructions.

What payload capacity actually includes

Payload is not just luggage. Depending on the vehicle, it can include occupants, cargo, aftermarket accessories and the portion of trailer weight carried by the tow vehicle. A setup can be under a published tow rating and still run out of payload first.

Why tow rating is not enough

A truck may advertise a large maximum trailer rating while a specific high-trim configuration has much less payload than the marketing maximum suggests. Tongue weight or fifth-wheel pin weight is carried by the truck along with people, tools and hitch hardware. That is why the payload label on the exact vehicle is one of the first numbers to check.

Check axle, hitch and tire limits separately

Remaining payload does not prove every other rating is satisfied. The rear axle can be overloaded while total vehicle weight remains below GVWR, and receiver or tire ratings can impose their own limits. Treat the calculator as one screen in a multi-limit towing check.

Use a scale for the final check

For a loaded travel setup, certified scale weights are more useful than estimates. Load passengers, fuel, normal cargo and the trailer as you actually travel, then compare measured axle and vehicle weights with the applicable ratings.

Example

A truck with 1,500 lb of rated payload carrying 350 lb of occupants, 300 lb of gear, 100 lb of accessories and 500 lb of tongue weight has used 1,250 lb, leaving 250 lb of estimated payload. That does not create 250 lb of permission to add weight anywhere; rear-axle, tire and hitch ratings still need to be checked.