# What is Toilet Paper Roll Circumference?

Ever wondered what is the toilet paper roll circumference? When considering new toilet paper products, you might wonder about their circumference or girth. Other curious questions that keep lingering in our heads include, how long around is a toilet paper roll, what is the diameter of a toilet paper roll, and lastly, are all toilet paper rolls the same diameter?

You want to know the dimensions of your toilet paper roll so that you can replace it with one of similar size and type if necessary or purchase a larger or smaller one to suit your preferences. This can help you determine whether the toilet paper product will fit well on your toilet paper holder.

Read on to understand the dimensions of a toilet paper roll.

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## Toilet Paper Roll Circumference

The average toilet paper roll has a circumference of 6 inches. A toilet paper roll’s outside diameter is about 4.5 inches. The diameter is the measurement across a circle, and the circumference is the measurement around it.

When you calculate the circumference of a toilet paper roll, you’re making a rough estimate of its total length. Toilet paper rolls will vary slightly in their dimensions, but they’ll usually fall within a range of 4.0 to 5.0 inches in diameter and 6 to 6.5 inches in circumference. Toilet paper rolls with these dimensions are standard for most American households.

## How to Measure the Toilet Paper Roll Circumference

The easiest way to do this is with a tape measure. Measure the distance around the tube from one end to the other, then divide by pi (3.14). Some calculators will help you find out the circumference of your toilet paper roll without having to do any math as long as your measurements are correct. Some allow you to input the diameter of the tube as well so that it calculates both measures for you.

## Are All Toilet Paper Rolls the Same in Diameter

It’s a common misconception that all toilet paper rolls are the same in diameter. There is quite a range in sizes! The average toilet paper roll has a diameter of 9 cm, with the inner cardboard having an average diameter of 1.6cm. These sizes have been shrinking over the years.

Below is a summary of the measurements of common toilet paper brands in the United States.

## How Long Around is a Toilet Paper Roll

The average toilet paper roll has a girth of four and a half inches. This means that if you were to lay the toilet paper roll flat, it would measure out to be nine inches long. The standard size for a toilet paper roll is four and a quarter inch in diameter. However, some companies offer rolls three and a half inches in diameter. These smaller rolls are usually found in public restrooms because they can save space.

## What is the Ideal Toilet Paper Roll Girth?

While the sizes of toilet paper rolls are almost the same, they can vary slightly. Some brands produce marginally larger or smaller rolls than others. If you’re looking for the ideal toilet paper roll circumference for your home, you’ll want to consider the size of your toilet paper holder.