Horse Trailer Weight Calculator (Loaded Trailer, Tongue/Pin Weight, Tow Vehicle Check)

How it works

loaded trailer = empty + horses + tack/feed + water (8.34 lb/gal) + LQ load ≤ trailer GVWR and ≤ tow rating · tongue weight ≈ 10–15% (bumper pull) / pin ≈ 20–25% (gooseneck) of loaded weight · payload used = hitch weight + occupants + hitch hardware ≤ tow vehicle payload · horses possible = (tightest remaining capacity) ÷ horse weight

Horse trailers are heavier than they look and their cargo is heavier still: two average horses add well over a ton, and hay, tack and water another few hundred pounds. Three limits apply at once — the trailer's own GVWR, the truck's tow rating, and the truck's payload, which absorbs the tongue or pin weight plus everyone in the cab. For half-ton trucks and bumper-pull trailers the payload is almost always the first to run out. This calculator builds the loaded weight, estimates the hitch weight, and checks all three so you know the margin before a horse walks on.

Worked example

A 3,800 lb two-horse bumper-pull with two 1,150 lb horses, 300 lb of tack and hay and 20 gallons of water weighs about 6,570 lb — 94% of its 7,000 lb GVWR and 69% of a 9,500 lb tow rating. Tongue weight at 12% is about 790 lb; with 350 lb of people and a 60 lb hitch that is 1,200 lb of a 1,600 lb payload, leaving about 400 lb — legal, with the truck's payload as the tightest limit (the trailer GVWR has about 430 lb spare).

Frequently asked questions