Calculating Volumetric Weight for FedEx Shipments

May 29, 2023
Written by
Anthony Robinson
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Understanding Volumetric Weight in FedEx Shipping

When shipping with FedEx, understanding volumetric weight is essential to accurately determine shipping costs. Volumetric weight, also known as dimensional weight, is a metric used by FedEx and other carriers to account for the volume a package occupies during transit. This ensures that larger, lighter packages are priced appropriately, preventing carriers from losing revenue on bulky but lightweight shipments.

What is Volumetric Weight?

Volumetric weight is calculated based on the dimensions of a package rather than its actual weight. It is determined by multiplying the length, width, and height of the package and then dividing by a predefined volumetric divisor. This metric allows shipping carriers like FedEx to optimize space in their transport vehicles and airplanes.

Why Volumetric Weight Matters for Shipping Costs

Shipping costs can be significantly impacted by volumetric weight, especially for items that are light but occupy considerable space. By charging based on volumetric weight, FedEx ensures that the cost of shipping reflects both the package's weight and the space it consumes. This approach helps carriers manage their logistics efficiently and maintain competitive pricing structures.

Calculating Volumetric Weight for FedEx Shipments

Calculating volumetric weight involves a straightforward formula, but understanding each step is crucial for accuracy.

Step-by-Step Guide

  1. Measure the Package: Use a measuring tape or ruler to determine the length, width, and height of your package in inches.
  2. Calculate Cubic Inches: Multiply the length, width, and height to get the total cubic inches.
  3. Apply the Volumetric Divisor: Divide the cubic inches by FedEx’s volumetric divisor (139 for domestic shipments and 166 for international shipments).
  4. Determine Volumetric Weight: The result is the volumetric weight in pounds, which will be used to calculate shipping costs.

FedEx Volumetric Divisor

FedEx uses different volumetric divisors based on the type of shipment:

  • Domestic Shipments: 139
  • International Shipments: 166

For example, a package measuring 20 inches by 20 inches by 20 inches would have a volumetric weight calculated as follows:

Calculation: (20 × 20 × 20) / 139 = 57.55 pounds

Measuring Your Shipment Accurately

Accurate measurement of your package is critical to ensure that your volumetric weight calculation is precise, thereby avoiding unexpected shipping costs.

Determining the Dimensions

Use a measuring tape or ruler to measure the length, width, and height of your package. Always round up to the nearest inch if measurements include fractions to ensure compliance with FedEx’s guidelines.

Handling Irregularly Shaped Packages

For packages that are not perfect cubes or rectangles, measure the longest points to get the maximum possible length, width, and height. This ensures that the entire volume occupied by the package is accounted for in the calculation.

Reducing Volumetric Weight to Save on Shipping Costs

Minimizing the volumetric weight of your shipments can lead to substantial savings. Here are some strategies to achieve this:

  • Use Appropriately Sized Packaging: Select the smallest possible box that can comfortably fit your items.
  • Optimize Packing: Arrange items to occupy as little space as possible.
  • Lightweight Materials: Utilize packing materials that add minimal bulk.
  • Consolidate Shipments: Combine multiple items into a single package to reduce overall space usage.

Common Mistakes and How to Avoid Them

Errors in calculating volumetric weight can lead to overpayment or shipment delays. Avoid these common mistakes:

  • Incorrect Measurements: Ensure all dimensions are measured accurately and rounded up properly.
  • Using the Wrong Divisor: Apply the correct volumetric divisor based on whether the shipment is domestic or international.
  • Neglecting Packaging: Remember to include all packaging materials in your measurements.
  • Ignoring Carrier Guidelines: Each shipping carrier may have specific rules; always verify them before shipping.

The Impact of Volumetric Weight on International Shipping Rates

International shipments are particularly sensitive to volumetric weight due to varying shipping routes and space constraints. Accurately calculating volumetric weight ensures competitive pricing and avoids unexpected fees when shipping across borders. Additionally, understanding the regulations and restrictions of different countries can help optimize your shipping strategy.

Technological Advancements in Volumetric Weight Calculation

Advancements in technology have streamlined the process of calculating volumetric weight:

  • Automated Calculators: Online tools like FedEx’s Volumetric Weight Calculator simplify the calculation process.
  • Measurement Apps: Mobile applications allow for quick and accurate measurement recordings directly from smartphones.
  • AI and Machine Learning: These technologies predict optimal packaging solutions to minimize volumetric weight.

Leveraging these tools can enhance efficiency and accuracy in your shipping operations.

Differences in Volumetric Weight Calculation Across Shipping Providers

While FedEx uses a volumetric divisor of 139 for domestic and 166 for international shipments, other carriers such as UPS and DHL have their own calculation methods and divisors. It is essential to understand these differences to ensure accurate cost estimates and avoid discrepancies when switching between carriers.

For example, UPS typically uses a divisor of 139 as well for domestic shipments, similar to FedEx, but may differ for international parcels. Always consult the specific carrier’s guidelines for precise calculations.

Conclusion

Accurately calculating volumetric weight is a critical aspect of optimizing shipping costs with FedEx. By understanding the factors that influence volumetric weight, measuring shipments precisely, and utilizing available technological tools, businesses and individuals can ensure that their shipping expenses remain manageable. Additionally, being aware of common pitfalls and differences across shipping providers further enhances the efficiency and cost-effectiveness of your shipping strategy.

About the Author

Anthony Robinson is the CEO of ShipScience, a pioneering company dedicated to helping e-commerce leaders optimize their shipping decisions, reduce costs, and automate tedious processes. With a Bachelors Degree in Economics from Stanford University, Anthony brings over two decades of expertise in logistics, business development, and operational efficiency to the table.
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