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Dimensional Weight Formula:
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Dimensional weight (also called volumetric weight) is a pricing technique used by shipping companies that takes into account package dimensions rather than just actual weight. It represents the amount of space a package occupies in relation to its actual weight.
The calculator uses the dimensional weight formula:
Where:
Explanation: The formula calculates how much space your package occupies in the shipping vehicle. Carriers charge based on whichever is greater - the actual weight or the dimensional weight.
Details: Accurate dimensional weight calculation is crucial for shipping cost estimation, package optimization, and avoiding unexpected shipping charges. Many carriers use this calculation to ensure they're properly compensated for the space packages occupy.
Tips: Enter all dimensions in inches. Measure the package at its longest, widest, and tallest points, including any bulges or protrusions. All values must be positive numbers.
Q1: Why is the divisor 166 used in the formula?
A: The divisor 166 represents the volume (in cubic inches) per pound that carriers use as a standard conversion factor for dimensional weight calculations.
Q2: Do all shipping carriers use the same formula?
A: Most major carriers use similar formulas, but some may use slightly different divisors (144, 139, etc.) depending on their specific pricing policies.
Q3: When is dimensional weight applied?
A: Dimensional weight is applied when the calculated dimensional weight exceeds the actual weight of the package. Carriers charge based on whichever weight is greater.
Q4: How can I reduce dimensional weight charges?
A: Use smaller boxes, compress contents when possible, and choose packaging that closely fits your items to minimize wasted space.
Q5: Is dimensional weight used for international shipping?
A: Yes, dimensional weight calculations are commonly used for both domestic and international shipments by most major carriers.