1. What is a FedEx LTL Class Calculator?

Definition: This calculator determines the density of a shipment which is used to assign the appropriate freight class for FedEx Less Than Truckload (LTL) shipping.

Purpose: It helps shippers estimate their freight class and understand how density affects shipping costs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \rho \) — Density (pounds per cubic foot)
• \( W \) — Weight (pounds)
• \( L \) — Length (inches)
• \( W \) — Width (inches)
• \( H \) — Height (inches)

Explanation: The formula converts cubic inches to cubic feet (1728 cubic inches = 1 cubic foot) then divides weight by volume to get density.

3. Importance of Density Calculation

Details: Freight class (50-500) is based on density, with higher density items generally receiving lower classes and lower shipping rates.

4. Using the Calculator

Tips: Enter the shipment's weight in pounds and dimensions in inches. All values must be > 0. The result shows density in lb/ft³ which determines freight class.

5. Frequently Asked Questions (FAQ)

Q1: How does density relate to freight class?
A: Higher density items (heavier for their size) get lower class numbers (50-85) while lower density items get higher class numbers (125-500).

Q2: What's the 1728 in the formula?
A: 1728 cubic inches = 1 cubic foot (12×12×12). This converts the volume from cubic inches to cubic feet.

Q3: How accurate does this need to be?
A: Very accurate - FedEx will verify dimensions and weight, and incorrect classing can result in reclassification fees.

Q4: What about irregularly shaped items?
A: Use the smallest rectangular measurement that would contain the item (length × width × height).

Q5: Does this include packaging?
A: Yes, always measure and weigh the item with all packaging that will be shipped.