## kilometer

**Kilometer** is a multiple of the

**meter** unit. The

**kilo** prefix stands for 1000 therefore, 1 kilometer = 1000 meter units.

**Meter** is a unit of measurement of length. The definition for meter is the following:

1 kilometer is 1000 meters

The symbol for kilometer is

**km**## metre

**Metre** is a unit of measurement of length. The definition for metre is the following:

1 metre is the distance light travels in 1/299 792 458 of a second in vacuum.

The symbol for metre is

**m**