In order to pack and send anything, it is necessary to first determine the exact dimensions of the box. While a rough estimate may do for gift wrapping, a more precise dimension will be necessary for shipment.
As you can find different available Amazon box sizes, there are different ways to measure them too. To provide just a few examples, you may use a ruler, a measuring tape, or one of the many measuring applications for smartphones.
What are the different measurements that make up a box? This is one of the first things we should ask while creating a new package. Obviously, the answer is going to change based on the contents of the boxes and the final destination to which they’re being shipped.
In this article, you will learn how to measure box dimensions by using the threedimensional space included inside the rectangular form of the box: the length (the longest side), the width (the shortest side), and the height (measured from the bottom to top).
How to Measure a Box?
It’s all about perfection when it comes to measuring a box. If you care about making a good impression on your consumer base, you can’t afford to use unprofessional or badly designed product packaging.
Learning to take accurate measurements of a box is the first stage in this process. Even though it seems easy, you shouldn’t underestimate how important it is to measure your packing correctly.

Width
Across the left and right sides of a box is its width, the shortest side. Common units of this dimension are the inch and the centimeter. It is very important because it tells you how much space a box could have.

Length
The longest side of a box is its length, which is measured from front to back. Additionally, it may be written in inches or centimeters. Keep in mind that occasionally we just measure one end, the first or last, instead of the whole length at both ends and all four sides.
In this scenario, you will multiply your answer by two to get an exact number. Let us be more accurate, if your package measured 72 inches in length but was only 18 inches broad, you would need to estimate 144 inches.

Depth/Height
When the length and width are parallel to one another, we find height on the side. Inches or centimeters may also be used to describe the height to which something can be inserted into a certain box. There are many people who use this method to determine the volume of a given box.
What are Length, Width, and Height for Example?
Length, width, and height are all dimensions that we use to calculate a shape’s volume. If you check Amazon box sizes, you’ll see that the length (30 cm) and width (20 cm) both stand for the horizontal measurement. Height, on the other hand, is a measurement vertically (15 cm).
To indicate such dimensions in a standard format, a multiplication sign “X” is often used to represent a space between the two numbers. As a consequence of this, the following example, which is useful when looking for furniture of a certain size, is often written on furniture boxes:
Example: 44 in (Length) x 60 in (Width) x 200 in (Height)
How to Write Dimensions?
The first and foremost step in creating the perfect packaging for your product is learning how to write dimensions accurately. While calculations may seem elementary, taking accurate measurements requires some planning.
The question is how accurate must the measurements be?
Typically, the dimensions of a box are its length, width, and height. The top of the box is where you should start taking your measurements, which are as follows:
 When looking down on a box, the longest side is always length.
 When looking at the box from above, the side that is wider is the length, and the side that is smaller is the width.
 The vertical dimension is the one that is perpendicular to the horizontal dimension as well as the other dimension.
Example: All box dimensions are written as length x width x height. For example, 40″ x 30″ x 18″ means 40″ (Length) x 30″ (Width) x 18″ (Height)”.
Importance of Internal Dimensions
The inside dimensions of a box are essential since they reveal the amount of storage space at your disposal. It is essential to understand the various dimensions of a normal shipping package before you begin building your box. In addition to the outside dimensions, it’s important to pay attention to the inside dimensions of any Amazon box size to make sure your things fit snugly and securely during shipping.
It is crucial for manufacturers to achieve a balance that is harmonious between the inside and outward dimensions. What actually matters are the interior dimensions of your product. Most manufacturers know this and try to make sure the sizes are right, but there is a lot more to think about than just the size when making this kind of product.
The inside dimensions of a box are often overlooked throughout the package design process, despite their critical role in determining the amount of space available for each product. For example, if you need to send a variety of varioussized boxes together but are unsure of how they would stack, you need to know how to measure a box for shipment since the outward measurements do not indicate the weight capacity.
Importance of External Dimensions
If you want to know how much space is contained inside your box, you’ll need to know its outside measurements. If all the things cannot fit, shipping them would be prohibitively costly and counterproductive. When determining the capacity of a box based on its outside measurements, it is crucial to consider its thickness. If your product has to be securely wrapped in packaging, this might be a problem.
Remember that while calculating the size of a box, it is necessary to use the inside dimensions. Some considerations should be kept in mind while packaging fragile items in a carton box.
Carton boxes are the best option for shipping fragile things. The contents of this box will be safe from damage since the outside is lined with a material that is thicker than others. Rather than using glue, these boxes are constructed from two pieces of thick paperboard with twists in between them.
What Comes First – Width or Length?
Although it isn’t often considered, the order of the measurements on packaging follows a certain pattern. The first number in a set of measurements always signifies the length, the second the width, and the third the height. Having an understanding of this pattern can help you estimate how much space your completed work will need. It’s a common procedure to retain the measurements in this sequence since that’s how most things are measured. In a nutshell, when you start measuring a box—its length, width, and height—are the most important things to consider first. This is true regardless of whether one uses the Imperial or Metric system.
How to Calculate the Dimensions of a Box?
Multiply the length, width, and height of the Amazon box sizes you want for your product, and you’ll have the dimensions you need. This is the same format that your packaging provider will use when creating your boxes. As seen above, the length is the longest side of the box, and the box’s width is the shortest side. Finally, the height is parallel to the length and width dimensions.
“It’s also likely that you’ll come across contexts in which “depth” is used instead of “height” to describe this measurement.”
You might express the measurements of a box that was 16 inches long. 9 inches wide, and 5 inches high as 16″ x 9″ x 5″. Understanding how to write the dimensions of a box for a packing company can guarantee that your order is fulfilled to your satisfaction.