# What things are 1 cm long?

Daily we see or use various items. Usually they are quite small and we measure their length in centimetres or inches as, for example, Americans do. But, in Europe almost all countries use centimetres as the main unit to specify the length of small objects.

What things are 1 cm long? It can be, for instance, a small eraser, a boiled sweet, the diameter of a coin or anything else. Interestingly, your nail is probably 1 cm wide. You can check it! But, you have to remember that **1 cm is not equal to 1 inch** even when these units describe the same length of the same object.

It means that when things are 1 inch long they are not 1 cm long. There is something called the inch** to cm ratio**, which says that **1 inch is equal to 2.54 cm**:

**1 inch = 2.54 cm.**

So, if you have an item 1 inch long you have an item 2.54 cm long. To find out what things are 1 cm long when their length is presented in 1 inch we have to divide 1 by 2.54:

**1 / 2.54 = 0.3937007870 inch.**

This result says that** 1 cm is equal to** **0.3937007870 inch. **Now you know that things 0.3937007870 inch are also 1 cm long.

## An inch to cm conversion – what is this for?

You already know the basic relationship between a centimetre and an inch. But, what do you have to do when you have, for example, an item 7 inch long and you want to know its length in centimetres? You have to convert the mentioned value in **inches to cm**. How to do it?

It’s not very complicated. The first thing you have to remember you already know – it is the** inch to cm ratio**. Second thing concerns the general inch to cm equation which looks like this:

**The length in inches * 2.54 = The length in centimetres.**

These two things are all you have to remember to convert any value in** inches to cm** manually. According to this information, you can create something like a table where you will find the most popular values in inches converted to centimeters. It is called an** inch to cm chart**:

**1 inch = 2.54 cm,****5 inches = 12.7 cm,****10 inches = 25.4 cm,****50 inches = 127 cm,****100 inches = 254 cm.**

This is a small **inch to cm chart**, but you can create bigger if you want. Thanks to it you can faster convert **inches to cm manually**. For instance, when you want to know how many cm in 40 inches are, you can subtract 10 inches from 50 inches. According to our table it would look like this:

**50 inches – 10 inches = 127 cm – 25.4 cm = 101.6 cm.**

It is only an example – you can make other calculations easier to convert **inches to cm**.

You can also do it in faster way.

## An inch to cm calculator – how it works?

To make the **conversion for inch to cm** a lot easier and faster we created a web-based device called an online **inch to cm converter**. Thanks to this device you can convert inches to cm in a short time, even when you want to convert very high values.

You only have to type the value you want to convert and press enter. After less than a second you will see the result of an **inch to cm conversion**. It is a very comfortable solution which will help you a lot.**Check it for yourself! It does not cost anything ****– we share it for free with all people to make an inch to cm and vice versa conversion easier. Try to use it!**