# mm to km

In this article, we’ll explain the conversion process from mm to km with the help of two methods, the first method is by using the converter and the other one is by using the conversion formula. So that you can choose as per your choice and convenience.

## What is a millimeter?

In the Metric System, A millimeter is a **unit of Length** or **Distance**, It symbolises as ‘**mm**‘. There are **1,000,000 millimeters** in a** kilomete**r. The International spelling for this unit is ‘**Millimetre**‘.

## What is a kilometer?

In the Metric System, kilometer is also a **unit of Length** or **Distance**, It symbolises as ‘**km**‘. There are **0.000001 kilometers** in a **millimeter**. The International spelling for this unit is ‘**kilometre**‘. It is used to express the distance between two geographical places. In some of the places (i.e. the United States and the United Kingdom) the unit used is the ‘**mile**‘.

## How to convert mm to km?

Here are the following conversion methods given:

By using the converter

By using the formula

### By using the converter

- Enter your specific value in ‘
**mm field**‘ in the conversion calculator as shown in the image.

- Then you need to click on the ‘
**Calculate km**‘ button. - As you will see, your answer will appear in the ‘
**km field**‘ after that.

### By using the formula

The formula used to convert mm to km:

**F(x) = x / 1000000**

Steps to follow :

- First of all, Divide the amount of millimeters by
**1000000**. - And then, the result will be expressed in kilometers as soon as you complete the calculations.

For example, if you want to convert **10 mm** to **km**, just replace **x** by **10** [mm]:

1 mm = 10 / 1000000 = 0.00001 km