1. What is FedEx Dimensional Weight?

Definition: Dimensional weight (DIM weight) is a pricing technique used by FedEx and other carriers that calculates shipping costs based on package volume rather than actual weight.

Purpose: It helps carriers account for lightweight packages that occupy significant space in their vehicles.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( DW \) — Dimensional weight (pounds)
• \( L \) — Length (inches)
• \( W \) — Width (inches)
• \( H \) — Height (inches)

Explanation: The package dimensions are multiplied together and divided by 139 (FedEx's dimensional factor) to determine the billable weight.

3. Importance of Dimensional Weight Calculation

Details: Understanding dimensional weight helps businesses optimize packaging to reduce shipping costs and avoid unexpected charges.

4. Using the Calculator

Tips: Measure your package in inches at its longest, widest, and tallest points (including any bulges or protrusions). Round each measurement to the nearest whole number before calculating.

5. Frequently Asked Questions (FAQ)

Q1: Why does FedEx use dimensional weight?
A: To account for space a package occupies in relation to its actual weight, ensuring fair pricing for shipping services.

Q2: What's the 139 divisor based on?
A: It represents the standard dimensional factor (in cubic inches per pound) used by FedEx for domestic shipments.

Q3: How does FedEx determine which weight to charge?
A: They charge based on whichever is greater - the actual weight or the dimensional weight.

Q4: Is the divisor different for international shipments?
A: Yes, international shipments typically use a divisor of 166 for dimensional weight calculations.

Q5: How can I reduce my dimensional weight?
A: Use smaller boxes, compress contents when possible, or consider breaking shipments into multiple packages.