# Length converter

## About

Convert kilometers, meters, miles, inches, yards and more.

### What is Lenght?

Length is a measure of distance between two points. The most commonly used units of length are:

#### Metric System:

- Millimeters (mm)
- Centimeters (cm)
- Meters (m)
- Kilometers (km)

#### Imperial System:

- Inches (in)
- Feet (ft)
- Yards (yd)
- Miles (mi)

The metric system is widely used in scientific and mathematical applications and the International System of Units (SI) is based on the metric system. The imperial system is still commonly used in the United States and some other countries.

### Conversion of lenghts

To convert from one unit of length to another, you need to know the conversion factor between the units. For example, the conversion factor from inches to centimeters is 2.54, so to convert inches to centimeters, you multiply the number of inches by 2.54.

Here's the general formula for converting between units:

`(Value in unit A) x (Conversion factor from unit A to unit B) = (Value in unit B)`

For example, to convert 5 inches to centimeters:

`5 inches x 2.54 cm/inch = 12.7 cm`

Similarly, you can find the conversion factor between any other units and use the same formula to convert between them.