How to Measure Box & Packaging Dimensions

How to Measure Box & Packaging Dimensions

Box dimensions include length, width, height, and depth, which can technically mean something different to everyone. In order to ensure we know exactly which sides of your packaging these terms refer to, we've created these dimension guidelines for easy reference and communication.


  • All box dimensions are written as length x width x height. For example, 14" x 11" x 4" means 14" (L) x 11" (W) x 4" (H)".
  • Specify whether these are inner or outer box dimensions.
PackMojo Standard Mailer Box Sizing Guide

Mailer Box

PackMojo Folding Carton Sizing Guide

Folding Carton Box

PackMojo Partial Cover Rigid Box Sizing Guide

Rigid Box (Lid and Base)

PackMojo Shoulder and Neck Rigid Box Sizing Guide

Shoulder and Neck Rigid Box

PackMojo Magnetic Lid Rigid Box Sizing Guide

Magnetic Rigid Box

PackMojo Rigid Drawer Box with Ribbon Sizing Guide

Rigid Drawer Box

PackMojo Display Box with Dust Flaps Sizing Guide

Display Box with Dust Flaps

PackMojo Display Box without Dust Flaps Sizing Guide

Display Box without Dust Flaps

PackMojo Foldable Tray and Sleeve Box with Thin Walls Sizing Guide

Foldable Tray and Sleeve Box

PackMojo Custom Pre-glued Sleeves Sizing Guide

Pre-glued Packaging Sleeves

PackMojo Custom Packaging Sleeves with Adhesive Sizing Guide

Flat Packaging Sleeves

PackMojo Custom Cardboard Tubes Sizing Guide

Cardboard Tubes

PackMojo Paper Bag with Rope Handles Sizing Guide

Paper Bags

PackMojo Die Cut Stickers Sizing Guide

Custom Stickers

PackMojo Custom Hang Tags Sizing Guide

Custom Hang Tags

PackMojo Custom Printouts Sizing Guide

Custom Printouts

Foldable Lid and Base Box Mockup Dimensions Length Width Height

Foldable Lid and Base Box

PackMojo Custom Cake Box Sizing Guide

Cake Boxes

PackMojo Custom Pillow Boxes Sizing Guide

Pillow Boxes

PackMojo Custom Tissue Paper Sizing Guide

Custom Tissue Paper

How to Accurately Measure Box Dimensions: Step-by-Step Walkthrough

Whether you're preparing for a move, shipping products, or simply trying to organize storage, knowing how to measure a box's dimensions accurately is an essential skill. With the right tools and approach, you can quickly get precise measurements that will help you in selecting the right box size for your needs or calculating shipping costs. In this guide, we'll walk you through the simple steps to measure the length, width, and height of any box.

What You'll Need

Before we dive into the steps, make sure you have one of the following tools on hand:

  • A ruler (for small boxes)
  • A tape measure (ideal for most boxes)
  • A yardstick (useful for larger boxes)

Choose a tool that best fits the box size you are measuring to ensure accuracy and ease of use.

Step 1: Measure the Length

Identify the longest side of the box to begin. This will be considered the length of the box. Place your measuring tool so that it spans from the leftmost edge to the rightmost edge of the box. Ensure that the tool is aligned straight across, not at an angle, to avoid inaccuracies. The measurement you get is the box's length. Remember, precision is key, so take your time to ensure the tool is properly aligned.

Step 2: Measure the Width

Next, you'll measure the width of the box, which is the side adjacent to the length. Again, ensure your measuring tool is placed straight across from one edge to the other. This measurement is the box's width, typically considered the shorter side. As with the length, make sure the tool is perfectly horizontal for an accurate measurement.

Step 3: Measure the Height (Depth)

The height, or depth, of the box is measured from the top down to the base. If the box is closed, you'll measure the outside. If it's open, you can also opt to measure from the inside, going from the top edge down to the bottom. Ensure that your measuring tool is perpendicular to the base of the box to avoid slanting, which could result in an incorrect measurement.

Tips for Accurate Measurements

Consistency is key: Use the same unit of measurement (inches, centimeters, etc.) for all dimensions to ensure consistency, especially important for shipping or fitting purposes. The standard notation for box dimensions is Length x Width x Height (L x W x H). Accuracy matters: Especially with larger or irregularly shaped boxes, measure twice to confirm your measurements.

Account for irregular shapes: If the box is not perfectly rectangular or square, measure at the box's widest or tallest points to account for any bulges or irregularities.

Measuring box dimensions is a simple process that can save you time and hassle in many situations. Whether you're packing for a move, shipping items, or organizing your space, accurate measurements are crucial. With this guide, you'll have no trouble getting the precise dimensions of any box, ensuring that your packing and shipping processes go smoothly.