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Freight Class Calculator


Table of Content


The freight class calculator is used to determine the freight class of their shipment, which is a numerical value assigned to commodities based on their density, stowability, and liability. 

What Is Freight Class?

Freight class is the way to categorize the shipment's dimensions and weight. They are directly correlated to the consignment's density.

For various types of products, the freight classification system was created by the NMFTA to equalize freight pricing. This calculator determines them accordingly and tells the status of products. Furthermore, length, width, height, and weight are measured in the calculation.

Freight Class Formula:

To calculate the density and class follow the below formula:

Density = Weight / Volume

Volume = Length * Width * Height 

Freight Class = Shipment Weight / Volume

How To Calculate Freight Density?

The class freight calculator shows you the step-by-step solution for solving the LTL class calculator equations. Let’s take a look at the examples to clarify your concept!

Practical Example:

Let’s suppose that the dimension of the box is 4ft, 3ft, and 6ft in size, respectively. Assume that its weight is 288 lbs. Calculate their volume and density.


The volume of your box is determined by multiplying their dimensions by each other.

Volume = 4 * 3 * 6

Volume = 72 cu ft

Divide the weight by the volume of the box to calculate its density.

Density = 288/72

Density = 4

If you convert the unit of the weight, then you use our weight converter.

How Does This Calculator Work?

The freight class codes calculator is developed to analyze the shipping cost of goods to ensure that shipments are accurately classified. It looks for some values to process promptly. So, provide these values and enhance accuracy in calculations.

Required Entities:

  • Length 
  • Width
  • Height
  • Weight of the shipment
  • Tap “Calculate” 

Result Summary:

  • Freight class 
  • Volume of the consignment 
  • Density of the shipment 


Why is Freight Class Important?

Frighten class plays a significant role in determining the shipment’s weight and density. Furthermore, You will need to know your goods class to obtain a rate or create a goods shipping label or bill of landing online.

What Are The Factors That Determine Freight Class?

Frighten class is realized on four characteristics that determine any given commodity.

  • Density: How much is this heavy concerning its size
  • Stow-ability: This factor tells the shipment's hazards and heavyweight.
  • Handling: Any freight that requires special loading equipment could be assigned a higher class

What Is Class 55 Freight?

Class 55 freight involves brick, cement, hardwood flooring, and construction material, which weigh about 35-50 pounds per cubic foot.

Freight Class Chart:

The freight classification system was created by the NMFTA. This National Motor Freight Classification contributes shipments into 18 different freight classes. These are given below in the form of a table.

Freight class code Type of freight Weight per ft^3
50 Durable freight that fits on a standard 4' × 4' pallet 50+ lbs.
55 Bricks, cement, hardwood flooring, construction materials 35–50 lbs
60 Car accessories, car parts 30–35 lbs
65 Car accessories and parts, boxed books, bottled drinks 22.5–30 lbs
70 Car accessories and parts, auto engines, food items 15–22.5 lbs
77.5 Tires, bathroom fixtures 13.5–15 lbs
85 Created machinery, cast iron stoves 12–13.5 lbs
92.5 Computers, monitors, refrigerators 10.5–12 lbs
100 Car covers, canvas, boat covers, wine cases, caskets 9–10.5 lbs
110 Cabinets, framed art, table saws 8–9 lbs
125 Small home appliances 7–8 lbs
150 Auto sheet metal, bookcases 6–7 lbs
175 Clothing, couches, stuffed furniture 5–6 lbs
200 Sheet metal parts, aluminium tables, packaged mattresses, aircraft parts 4–5 lbs
250 Mattresses and box springs, plasma TVs, bamboo furniture 3–4 lbs
300 Model boats, assembled chairs, tables, wood cabinets 2–3 lbs
400 Deer antlers 1–2 lbs
500 Gold dust, ping pong balls <1 lb


Wikipedia: National Motor Freight Classification, explore all about freight (association).

Alan Walker

Studies mathematics sciences, and Technology. Tech geek and a content writer. Wikipedia addict who wants to know everything. Loves traveling, nature, reading. Math and Technology have done their part, and now it's the time for us to get benefits.

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