Calculate your shipment freight density

Calculate your shipment freight density

Density Calculator

LTL Shipments are rated using the NMFC classification guidelines. The world of LTL freight is often a complex and typically is a difficult part of freight shipping to manage. Determining the right freight class can save you both time and money. We’ve created an easy-to-use calculator to help you choose the right freight class and accurately plan your shipment.

Length (in.):

Width (in.):

Height (in.):

Weight (lbs.):

Palletized Dimensions.

In cases where a shipment is palletized, the dimensions of the pallet determine the cubic dimensions. Although the original dimension of the carton remains the same, the cubic dimensions now include those of the pallet.


Length 48″, Width 40″, Height 38″ (32″ plus 6″ of Pallet) Equals 72,960 Cubic Inches (Length x Width x Height) or 42.2 Cubic Feet (Length x Width x Height/1728). The Density equals the weight 130 (100 lbs. for the carton and approximately 30 lbs. for the pallet) divided by the dimension, 2.37 lbs. per cubic feet.

Freight Classification

In order to accurately quote LTL freight rates, LTL shipments must be classified correctly. The National Motor Freight Traffic Association has established 18 freight classifications ranging from 50 to 500. Classes are based on shipment handling, stow-ability, value, density and liability. Generally speaking, the lower the class, the lower the rate since lower classes are very dense shipments, which are harder to damage and easier to handle. Inversely, the higher the class, the higher the rate as the shipment is less dense.

Freight class reference chart

Class Name


Freight Density in lbs per cubic foot

Class 50

Fits on standard shrink-wrapped 4x4 pallet, very durable

50 pounds

Class 55

Bricks, cement, mortar, hardwood flooring

35 but less than 50 pounds

Class 60

Car accessories & car parts

30 but less than 35 pounds

Class 65

Car accessories & car parts, bottled beverages, books in boxes

22.5 but less than 30 pounds

Class 70

Car accessories & car parts, food items, automobile engines

15 but less than 22.5 pounds

Class 77.5

Tires, bathroom fixtures

13.5 but less than 15 pounds

Class 85

Crated machinery, cast iron stoves

12 but less than 13.5 pounds

Class 92.5

Computers, monitors, refrigerators

10.5 but less than 12 pounds

Class 100

Boat covers, car covers, canvas, wine cases, caskets

but less than 10.5 pounds

Class 110

Cabinets, framed artwork, table saw

but less than 9 pounds

Class 125

Small Household appliances

but less than 8 pounds

Class 150

Auto sheet metal parts, bookcases

but less than 7 pounds

Class 175

Clothing, couches, stuffed furniture

but less than 6 pounds

Class 200

Auto sheet metal part, aluminum table, packaged mattresses

but less than 5 pounds

Class 250

Bamboo furniture, mattress and box spring, plasma TV

but less than 4 pounds

Class 300

Wood cabinets, tables, chairs setup, model boats

but less than 3 pounds

Class 400

Deer antlers

but less than 2 pounds

Class 500

Low Density or High Value Highest Cost Bags of gold dust, ping pong balls

Less than 1lbs.


The information and tools on this page are intended to only be a resource to be used as a general guideline into the characteristics and attributes that are used by the National Motor Freight Traffic Association, Inc. in determining freight classes.  The information and tools on this page are not in any way intended to be a calculator for determining the exact actual freight class of your commodities.  

The most truly accurate method to ensure the accurate determination of freight class is to utilize The National Motor Freight Classification® (NMFC®) which is published by the National Motor Freight Traffic Association, Inc.  More information can be found on this at The National Motor Freight Traffic Association’s website

The National Motor Freight Traffic Association also makes the full National Motor Freight Classification® (NMFC®) on-line tool called ClassIT® which is available for a fee

Failure to accurately determine the actual freight class of your items being shipped can result in significantly different and higher rating and carrier billings.

Talk to one of our experienced freight specialists if you have any questions in determining your freight class. If you are unsure of the proper NMFC commodity class we can assist.

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