FedEx Dimensional Weight Formula:
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Dimensional weight (also called volumetric weight) is a pricing technique used by FedEx and other carriers that calculates shipping costs based on package volume rather than actual weight. It reflects the density of a package.
The calculator uses the FedEx dimensional weight formula:
Where:
Explanation: The formula calculates how much space your package occupies in relation to its actual weight. FedEx charges based on whichever is greater - the actual weight or dimensional weight.
Details: Understanding dimensional weight helps businesses optimize packaging to reduce shipping costs. Large, lightweight packages often incur higher fees due to dimensional weight pricing.
Tips: Measure your package at its longest point on each side in inches. Round each measurement to the nearest whole number before calculating. The divisor of 139 applies to domestic FedEx shipments (international may use 166).
Q1: Why does FedEx use dimensional weight?
A: It ensures carriers are fairly compensated for large, lightweight packages that take up valuable space in trucks and planes.
Q2: What's the difference between actual and dimensional weight?
A: Actual weight is what the package weighs on a scale. Dimensional weight is calculated based on package size. FedEx charges whichever is greater.
Q3: How can I reduce my dimensional weight?
A: Use smaller boxes, compress contents when possible, and choose packaging materials that minimize excess space.
Q4: Does the 139 divisor apply to all shipments?
A: No, international shipments typically use 166. Some services may use different divisors - always check current FedEx guidelines.
Q5: What's the best way to measure packages?
A: Measure to the nearest inch, rounding up. Include any bulges or protrusions in your measurements.