Use these formulas to calculate & further understand this jobsite mainstay
by Elizabeth Manning
July 25, 2016

Time and again,  Construction Business Owner  is your source for understanding your gross vehicle weight ratio ( GVWR). Below are simple formulas for your calculating your GVWR, as well as links to two popular articles on the subject from  CBO.

This formula is considered the GVWR on some manufacturer’s trailers.

GAWR = sum of all tire capacities, or the sum of all axle capacities


But other manufactures might use this formula for GVWR:

GVWR = Trailer Capacity + Trailer Weight

Payload capacity can be determined by one of these two formulas:

1.       GVWR – Trailer Weight = Payload Capacity

2.       GVWR – Trailer Weight + Tongue Transfer = Payload Capacity