How to measure a box for the purpose of calculating shipping charges?
Shipping items efficiently and cost-effectively requires careful preparation, and one of the most
critical steps in this process is accurately measuring your package. Whether you're shipping
products for your business, sending a gift to a friend, or handling e-commerce returns, incorrect
measurements can lead to unexpected charges, delays, or even a package being refused by a carrier.
This guide will walk you through the process of measuring a box for shipping, ensuring that you meet
carrier standards and avoid potential pitfalls. By understanding how to properly measure your
package, you can streamline your shipping process, reduce costs, and ensure your items arrive at
their destination safely and on time.
We’ll cover the essential steps, including how to measure the dimensions of your box, calculate the
dimensional weight (also known as volumetric weight), and understand how different shipping carriers
apply these measurements. Whether you're a seasoned shipper or new to the process, following these
steps will help you avoid common mistakes and stay within your shipping budget.
Measuring a box for shipping
Measuring a box for shipping is important to ensure it fits within the carrier's size and weight
limits, as well as to calculate accurate shipping costs. Here’s a step-by-step guide to properly
measure a box:
1. Measure the Dimensions
You need three measurements: Length, Width, and Height.
Length: Measure the longest side of the box. This is the side where the box opens, or the longest
dimension.
Width: Measure the shorter side of the box, typically the side adjacent to the length.
Height (or Depth): Measure from the top to the bottom of the box (perpendicular to the length and width).
2. Use a Ruler or Measuring Tape
Use a measuring tape or ruler and write down the measurements in inches or centimeters, depending on the carrier's requirements. Ensure accuracy, as even small variations can affect the shipping cost.
3. Take External Measurements
For shipping, you should always measure the outside dimensions of the box, not the internal dimensions. This is because the carrier calculates the shipping cost based on the total space the package occupies.
4. Calculate Dimensional Weight (Volumetric Weight)
Many carriers charge based on dimensional weight (DIM weight) if it's greater than the actual weight.
Here's how to calculate it:
Formula:
(Length × Width × Height) ÷ Dimensional Divisor (usually 139 for inches or 5000 for centimeters).
Example:
Box dimensions: 20 inches (Length) × 15 inches (Width) × 10 inches (Height).
DIM weight:
(20 × 15 × 10) ÷ 139 = 21.6 pounds.
Compare this to the actual weight of the box. If the DIM weight is higher, carriers will charge based on that.
5. Weigh the Package
After measuring the box, weigh the package using a shipping scale. Compare the actual weight to the DIM weight to know how you'll be charged.
6. Check Carrier Restrictions
Different shipping carriers (UPS, FedEx, USPS, DHL, etc.) may have size and weight limits. Double-check their requirements to avoid extra fees or rejections.
By measuring your box correctly, you can avoid surprises with shipping costs and ensure it meets
carrier requirements.
Conclusion
Accurately measuring a box for shipping might seem like a minor detail, but it’s a crucial step that
can significantly impact the efficiency and cost of your shipping process. By following the outlined
steps—measuring the length, width, and height of the package, calculating the dimensional weight,
and comparing it with the actual weight—you can avoid overpaying for shipping or dealing with
rejected shipments.
Moreover, as shipping carriers increasingly rely on dimensional weight to price shipments, mastering
these calculations will help you better estimate your shipping expenses and choose the most
cost-effective options for your needs. By taking a few extra minutes to measure your package
properly, you can ensure smoother shipping experiences and avoid unnecessary fees, contributing to
both customer satisfaction and cost savings for businesses.
Shipping can often be stressful, but with a proper understanding of box measurement techniques,
you’ll be well-prepared to navigate the process with confidence.