Load Weight Distribution

Calculate axle weights for legal compliance with federal weight limits.

Tractor Weight

lbs

Trailer Weight (Empty)

lbs

Cargo Weight

lbs

Cargo Position (% from front)

Trailer Length

Kingpin to Rear Axle

Total Axles

Tab to move between fields

Gross Weight

71,000 lbs

≈ 6 elephants

Compliance Status

OVERWEIGHT

Steer Axle Weight7,975 lbs

Drive Axle Weight22,525 lbs

Trailer Axle Weight40,500 lbs

Steer Over Limit0 lbs

Drive Over Limit0 lbs

Trailer Over Limit6,500 lbs

Gross Over Limit0 lbs

Available Capacity-6,500 lbs

How to Use This Calculator

Enter Tractor Weight and Trailer Weight (empty) in lbs.
Set Cargo Weight in lbs and Cargo Position as a % from the front of the trailer.
Enter Trailer Length in feet and the Kingpin-to-Rear-Axle distance.
Select the Total Number of Axles (steer + drive + trailer).
Review Gross Weight, Compliance Status, Steer Axle Weight, Drive Axle Weight, and Trailer Axle Weight against legal limits.

How the result changes with Cargo Weight

Tractor Weight: Curb weight of the tractor unit.
Trailer Weight (Empty): Empty weight of the trailer.
Cargo Weight: Total weight of the cargo being hauled.
Cargo Position (% from front): Center of gravity of cargo as percentage from front of trailer.
Trailer Length: Interior length of the trailer in feet.
Kingpin to Rear Axle: Distance from kingpin to center of trailer axle group.
Total Axles: Total number of axles (steer + drive + trailer).

Identify Input Parameters
4 parameters
Tractor Weight = 17000, Trailer Weight (Empty) = 14000, Cargo Weight = 40000, Cargo Position (% from front) = 50 = 7 input(s) provided
Calculate Gross Weight
Gross Weight
71000 = 71000
Calculate Compliance Status
OVERWEIGHT = OVERWEIGHT
Calculate Steer Axle Weight
Steer Axle Weight
7975 = 7975
Calculate Drive Axle Weight
Drive Axle Weight
22525 = 22525