Length

What is length?

Length is a measure of distance. Length is any quantity with dimension distance. The unit of length is a base unit in most systems of measurement.

The length of something is the amount that it measures from one end to the other along the longest side.

Many units of length have been used throughout history and in different civilisations and cultures: until quite recently it was common for length units to be differently defined even between neighboring towns and cities

Now, there are two systems for the measurement of length. One is the metric system and the other is customary system.
The units of metric system are centimeter, meter, kilometer, millimeter, etc.
The units of customary system are inch, foot, yard, mile, etc.

It is important to know that the standard unit of length is ‘Meter’ which is written in short as ‘m’. A meter length is divided into 100 equal parts. Each part is named centimeter and written in short as ‘cm’.

Thus, 1 m = 100 cm and 100 cm = 1 m

The long distances are measured in kilometer. This kilometer equals to 1000 meters. The kilometer is written in short as km.

1 kilometer (km) = 1000 meters (m) and 1000 m = 1 km