TowSafe static calculator

Towing Safety Calculator

Estimate payload, GCWR, hitch, tongue weight, axle, water, propane, and handling margins before you tow.

Estimates only. Verify before towing.

This calculator is educational and conservative. It does not certify that a rig is legal or safe. Verify every number against your vehicle door sticker, owner manual, hitch receiver label, trailer label, tire ratings, and local laws. Scale weights and manufacturer labels override these estimates.

Step 1

Vehicle

Use the exact numbers from your door sticker and owner manual when possible.

Find GVWR on the driver door sticker.

Usually listed on the tire and loading label on the driver door jamb.

Find GCWR in the owner manual towing section.

Use the rating for your exact engine, axle ratio, cab, bed, and tow package.

Use the vehicle spec sheet or measure axle center to axle center.

Find GAWR on the door sticker or certification label.

Find GAWR on the door sticker or certification label.

Add everyone riding in the tow vehicle, including kids and pets if applicable.

Privacy

Saved vehicles, hitches, and trailers stay in this browser's localStorage. No login is required and the app does not send your towing data anywhere. Shared loadout links keep the setup in the URL itself.