# Units of Length – Centimetre

Everybody on earth uses different units of Length. Each country has its own rules according to identifying the length of an object.

Most countries apply the rules based on the International System of Units accepted in 1960 by scientists. The mentioned system has been adopted by all countries of the world instead of the United States of America, Liberia and Birma.

It means most people use the metre as the main unit of length. But, they use more often the centimetre, because this unit is more comfortable to specify the length of the item.

Therefore, for example, in the United States of America people use the inch, which is equivalent to a centimetre. Because of that, there is sometimes a need to convert a value in **inches to cm**.

How to do** inch to cm conversion** manually?

## Manual inch to cm conversion

If you want to **change from inch to cm **without the help of any devices, you have to know the **inch to cm ratio**. It is a value that says **how many cm in an inch** are. According to the rule, **1 inch is equal to 2.54 cm **– when you know this information, you can calculate any **inch to cm equation**.

For instance, you want to convert **43 inches to cm**. How to do that? All you have to do is multiply the number of inches by 2.54. The result of this equation will show you a length in cm.

So, in our example the inch to cm equation would look like this:

**1 inch = 2.54 cm,**

**43 inches = 43 * 2.54 = 109.22 cm.**

Easy, right? You have to only remember that 1 inch is equal to 2.54 cm and the general inch to cm equation looks always like this:

**The number of inches * 2.54 = The number of centimeters.**

The length of an object is the same, but now you can present it in two other units. Thanks to it you can easily use both units. It is useful when you often read American books or order various items from America while living in Europe.

## Faster way to convert inch to cm

You don’t necessarily have to convert **inches to cm** manually. There is an easier and faster way to do that – you can use a professional **inch to cm calculator **which will calculate any **inch to cm equation **for you.

How it works? Each physical or online** inch to cm converter **is equipped with a special system based on the **inch to cm ratio** and the general **inch to cm equation**. The only thing you have to do is type a value in inches you want to convert to centimeters. An** inch to cm calculator **will show you the right result in less than a second after it. That’s amazing!

If you want to try it for your own, you can use our online **inch to cm converter** installed on this website. It will help you to convert even very high values in inches to centimeters in literally a fraction of a second. Practically, you need only the device with access to the Internet to do inch to cm conversion wherever and whenever you want.

**Use our web-based inch to cm calculator and find out for yourself its advantages. Convert the length of an object from inches to cm without any problems. You can forget about manual calculations – it is time for modern solutions!**