Length Width Height: Understand Dimensions Of A Box

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Emilly May 09, 2025

As we step into the custom packaging industry, one thing you will encounter frequently is the dimensions of a box, i.e., what is the length, width, and height of a box? You need to have all the basic knowledge to pick the best box size for your product. Let's start to learn more about its definition, dimensions, measurement, or calculations.

Overview L x W x H: And Knowing Why Dimensions Matter

difference between length width heigh

We know how important your product is to you, and the packaging of any product makes it a luxurious unboxing experience. While picking packaging with a perfect fit, you need to keep in mind that you are picking a shield that is going to protect your product from various factors. If the packaging is not according to the product, it can ruin the whole customer experience.

Also, it may get damaged, and you can suffer from loss. You need to have all the basic knowledge to pick the best box size for your product. It is a very crucial part of packaging that you should be aware of what size you are looking for in the packaging of your product. Let's learn the basics about length, width and height. The size of a custom box is determined by these 3 elements.

Length

The longest side of a thing, box, or product is known as length. You can also call it breadth.

Width or Depth

It is known as the side to side distance of an object. It's also called depth. 

Height

Height is the distance from the ground till how tall it goes. Height or depth are the same refers to the vertical.

How to Measure and Find the Dimensions?

Whatever shape the box is in, it can be square or rectangular, but there are some basic things to read the dimensions and calculate the exact size of a shape. While doing the dimensions, we know there is an interior part of the box that can have different measurements, and the exterior part also has different measurements.

Take a sheet of paper and make a cube on it. Now, as we know the longer side will be the length, but in case of a cube, the lengths of all sides will be the same as height and width and is clear because of its shape as a cube, but if we talk about rectangles or brick-shaped objects, the rectangular shape has different length width and height.

Supplies you Need to Measure Correctly: Length x Width x Height

    + An inches tape

    + Or a measuring scale

    + Paper or notepad

    + Pen

All you need to do is measure the length and note it down.

Now the width follows the height. Collectively, we can say a box measurement value is equal to = length x width x height

You can use any authentic measuring tape or any geometry tool for your convenience.

Must Read: How Tall Is A Box Of Cereal - All About Cereal Box Dimensions

2D or 3D dimensions

There are multiple dimensions of an object, for example, an object can be one-dimensional, two-dimensional, three-dimensional, or four-dimensional.

But when measuring a box, we consider three dimensions: length, width, and height. The linear side is length, also known as breadth, the horizontal one is width, and the vertical side is height. The longest dimension is mostly length, but this depends on the box's appearance as well. you need to specify to yourself what type of box you want to measure.

Exterior or Interior Dimensions of a Box

The interior and exterior can have different measurements. For example, a corrugated box can add an extra cm to your measurement, and your product won't fit in nicely. The best way is to measure from the interior side so that you know exactly about the product size.

The walls of the box can add extra measurement, for example, there are products which are highly fragile, and the walls of the box are kept wide, or there can be a shield of thermocol that can add extra space, so while measuring the exact size, consider measuring from the inside of the box.

Interior Size of a Box

The interior side is the inner side where the product is. it is also the more accurate side to measure the product box side, so that it ll fit perfectly and the box won't be loose or tight.

Exterior Size of the Box

The outer size is the outer side. It is mostly different from the inner side, depending on the material of the packaging that is being used for the box.

Round Objects

There can be objects with no corners, like crystal balls, meaning no length, width or height. In that case, you need to measure the radius of an object and the diameter. The diameter is double the radius.

You need to pick the center of the circle / round object, and now pick the measuring tape and measure from any one edge to the other side, but make sure you cross from the center of the circle. This is how you get the exact value of the circle.

Let's suppose the diameter of the circle is 20, so the box that will be used for its packaging will be a cube, having all sides of the box equal to 20.

That is how you can place the object within the box.

Standard Orders L x W x H

Mostly, there is a standard order of length x width x height, and it is effective on all boxes. Though there are three orders of measuring as follows:

Height x length x width order

This order is used to measure objects in rectangular shapes. You can start measuring height first, after that, measure its length, followed by height.

Length x height x width order

If you are observing the object from the side. Measure the length first, and then the height, followed by the width.

Height x width x length order

This order is mostly used for vertical objects. Measure the height first, then width, and then length.

But this makes no difference. You can measure at your convenience, though the formula is to multiply all values together via a calculator to get the area of the box.

Calculating the Volume of the Box

calculating the volume of the box

Understanding the formula.

The area or volume is the multiplication of all values, the longest measurement or longest dimension, the vertical dimension or height (height is the vertical), and the horizontal is mostly the width. It is mainly the distance from one side to the other.

For example:

The height, length, and width of an object are as follows.

Length = 5, Width = 4, Height = 5, Find the Volume?

Now if you want to calculate the volume of the box, use this formula.

Volume = L x W x H

Volume = 5 x 4 x 5

Volume = 20 x 5

Volume = 100 (volume of the box)

Ready to begin creating your product boxes?

Boxes are not only the packaging but also the safeguard of your product, which protects the product from damage. Whether you are looking for corrugated high-quality packaging or kraft ones, we are here to help you with the best of all. The boxes of a product are the first impression to the customer, and we know how to make a box that will perfectly fit your product.

Some Important Questions

What is the correct order of L x W x H?

The industry standard follows these dimensions: Length x Width x Height (L x W x H). You can start measuring any side of the object, depending on whether the object is horizontal or vertical. 

What is l*w*h?

It means Length x width x height.

How to calculate L * W * H?

Simply multiply all of the values, and you will get the volume of the object.

Do I need to send you the measurement? For a quote

Yes, you need to share with us the measurement of your product so that we can let you know the exact price of the packaging you are looking for.

Can I send you the product for precise measurements?

Yes, if you are unaware of how to measure or are afraid to make any mistake, you can send us a sample, we'll send it back with the order.

If the product is perfume and carries a unique shape, how to know its size for packaging?

You can send us your product so that we can take measurements.

What is the meaning of w*d*h?

It means width x depth x height.

Conclusion

In a nutshell, we know that picking the perfect packaging can never be done without knowing different dimensions. Length width, and height are the basic parameters to check while picking packaging for your product. My Box Printing is the best company that gives you quality products with unbeatable pricing. Also, we customize packaging according to demand. We are just a message or call away! You can place your order NOW and get the perfect premium packaging services with free delivery and design support.