How is freight density (PCF) calculated?

Freight density is calculated by multiplying the pallet length, width, and height in inches, dividing by 1,728 to find total cubic feet, and dividing total weight by cubic feet. Formula: Total Weight in LBS ÷ [(Length × Width × Height) ÷ 1,728] = Pounds Per Cubic Foot (PCF).

What is NMFC freight classification?

NMFC freight classification uses class values from 50 to 500 and considers density, handling, stowability, and liability. The applicable NMFC item and current ClassIT+ data remain authoritative for a shipment.

Why is 1,728 used in the freight density formula?

There are 1,728 cubic inches in one cubic foot (12 inches × 12 inches × 12 inches = 1,728). Dividing pallet cubic inches by 1,728 accurately converts dimensions into cubic feet.

How do I dispute a carrier W&I reclassification fee?

When reviewing a carrier Weight & Inspection (W&I) reclassification charge, document the shipment weight and extreme handling-unit dimensions, calculate density (PCF), and compare the result with the applicable NMFC item, carrier tariff, and current classification data before disputing the charge.

Freight density calculator

Calculate pallet density and compare its density-based class band. Your NMFC item and carrier terms determine the actual class.

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Pallet Dimensions & Weight

Pallet Dimensions (Inches)

L (IN)

W (IN)

H (IN)

Packaged Weight (LBS per Pallet)

LBS

Include the pallet and packaging in weight and extreme outside dimensions. Quantity assumes identical handling units; calculate different pallets separately.

Identical Pallet Quantity

Carrier Billed Freight Class (Optional Check)

Density & class estimate

Class 85

Total Cubic Volume

(48 × 40 × 48) / 1,728

53.33 Cu. Ft

Calculated Density (PCF)

Total LBS / Total Cu. Ft

12.19 PCF

Density-Based Class Band

Published 13-Sub Full-Density Structure

Class 85

Reclassification Status: Standard Density Match

At 12.19 PCF, the NMFTA density guideline maps to Class 85 (12–15 PCF tier). Actual NMFC classification can also depend on the applicable item plus handling, stowability, and liability characteristics.

Reviewing a carrier reweigh or reclass charge?

Send up to 50 carrier PDFs. Get extracted invoice data and reviewed findings. Reweigh or reclassification questions may also need shipment measurements, the NMFC item and carrier terms.

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How to Calculate Freight Density (PCF) and NMFC Class?

To calculate freight density in pounds per cubic foot (PCF), multiply pallet length, width, and height in inches, divide by 1,728 to find total cubic feet, and divide total weight by cubic feet. Formula: Total Weight in LBS ÷ [(Length × Width × Height) ÷ 1,728] = Density (PCF). For freight that uses the 13-sub full-density structure, the density can be mapped to a class band; the applicable NMFC item and any handling, stowability, liability, packaging, or tariff rules still control the shipment classification.

Step-by-Step Pallet Density Calculation Example

Assume a standard GMA pallet measuring 48" L × 40" W × 48" H weighing 650 LBS:

Calculate total cubic inches: 48 × 40 × 48 = 92,160 Cu. In.
Convert to cubic feet (divide by 1,728): 92,160 ÷ 1,728 = 53.33 Cu. Ft.
Divide total weight by cubic volume: 650 LBS ÷ 53.33 Cu. Ft. = 12.19 PCF
Compare the published 13-sub density structure: 12.19 PCF falls in the 12–15 PCF bracket → Class 85

Use the Density Result as a Review Signal

The calculator uses the published 13-sub full-density structure as a screening reference. It does not reproduce or replace the NMFC. Confirm the current NMFC item and class in ClassIT+ and check the governing carrier tariff or contract before changing a classification or disputing a charge.

Related Freight Tools: Calculate CWT Base Rate → Audit Fuel Surcharge (FSC) →

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