Freight Class Calculator

PWL has developed a freight class calculator you can use as a guide to determine a shipment’s volume and density.

Density is one factor used to calculate freight class. It’s based on the number of pieces in the shipment and the shipment’s dimensions and weight, ranging from 50 to 500. A shipment with a higher density typically has a lower freight classification.

Enter Shipment Dimensions

Shipment Density

LBS per cubic foot

Freight Class




In addition to an estimated density, our freight density calculator will provide you with a recommended class for your shipment. The freight class chart below is an abbreviated scale you can use to classify shipments.

Less than 1 class 400
1 but less than 2 class 300
2 but less than 4 class 250
4 but less than 6 class 175
6 but less than 8 class 125
8 but less than 10 class 100
10 but less than 12 class 92.5
12 but less than 15 class 85
Over 15 class 70

If you have questions about how to use the shipping class calculator or otherwise determine the density of your freight, a PWL quote Account Representative can help. Simply call 248-707-1991 or utilize our LIVE CHAT for immediate  assistance

Freight Shipping | US Zip Codes

The easiest way to match zip codes with a city and state. Simply enter the zip code you wish to look up and we’ll do the rest.

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