Save trailer specifications once, then run a fresh load check whenever you tow.
Manufacturer ratings stay with the trailer. Today’s scale readings do not.
Load readings stay temporary and clear when you switch trailers.
Enter all required wheel weights to make them the authoritative axle-load source.
Summary first. Detailed calculations are below.
Based on the current measured load. These are not manufacturer-assigned GAWR or GVWR values.
Targets are sized so the current load uses no more than about 85% of the rating.
Export all locally saved trailer profiles as JSON, or import a previous backup.
Use this free trailer weight calculator to evaluate tongue weight, axle loads, individual tire loads and available capacity against the ratings saved for your trailer. It is designed for common utility, equipment, flatbed, enclosed and gooseneck trailers using single-axle or tandem-axle configurations.
Choose a JSON backup created by this app. The file is validated before any saved data changes.
Merge keeps your existing trailers and adds the imported profiles.
Replace will remove all trailers currently saved in this browser and use only the imported backup. This cannot be undone unless you exported a backup first.