Truck Payload Calculator
SI
Imp
Imperial
Inputs
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GVWR
(GVWR)
Gross vehicle weight rating from the manufacturer placard.
lb
Front GAWR
(F_GAWR)
Front gross axle weight rating.
lb
Rear GAWR
(R_GAWR)
Rear gross axle weight rating.
lb
Empty front axle
(F_empty)
Measured front axle weight before the added load. Use scale data when possible.
lb
Empty rear axle
(R_empty)
Measured rear axle weight before the added load. Use scale data when possible.
lb
Cab / equipment load
(W_cab)
Occupants, tools and equipment not already included in the empty axle weights.
lb
Cargo load
(W_cargo)
Payload carried in the bed, box or body.
lb
Trailer tongue load
(W_tongue)
Vertical hitch or trailer tongue load carried by the truck.
lb
Cab load on rear axle
Estimated percent of cab/equipment load carried by the rear axle.
%
Cargo on rear axle
Estimated percent of cargo carried by the rear axle.
%
Tongue load on rear axle
Estimated percent of tongue load carried by the rear axle.
%
Results
Default result
Edit inputs
Gross vehicle weight
(GVW)
9,800
lb
Pass
Also computed
Payload used
(W_payload)
3,400
lb
GVWR margin
(M_GVWR)
Pass
2,200
lb
Front axle load
(F_axle)
Pass
4,195
lb
Rear axle load
(R_axle)
Pass
5,605
lb
Front axle margin
(M_F)
1,005
lb
Rear axle margin
(M_R)
2,395
lb
Additional cargo capacity
(W_add)
Pass
2,200
lb
limited by front axle
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Method notes
3 notes
Axle load = empty axle weight + each added load multiplied by its entered front/rear split.
Additional cargo capacity uses the same cargo rear-axle split and is limited by GVWR, front GAWR and rear GAWR.
Use certified scale weights, tire/load ratings, hitch ratings, local regulations and manufacturer placards for real fleet or towing decisions.
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