# Kilometer to Atomic unit of length Converter

## Kilometer

*What is meter?*

In 1793, The distance from the equator to the North Pole was measured and divided by 10 million. The result of the previous process was called as a meter.

Nowadays, meter or metre is the base unit of length in the International System of Units (SI).

**Meter** or **metre** is a metric measurement slightly longer than a yard. It is the base unit of length in the International System of Units (SI). Distance measures length. For example, the distance of a road is how long the road is.

Meter is used as a measure of distance across the globe. Distance expresses the length. For example, the distance of a road is how long the road is.

However most of countries use meter to measure length, US is the primary exception which is using imperial system

*What is kilometer?*

The** kilometer** is a unit of length equals to 1,000 meters. Its abbreviation is km.

It is now the measurement unit used officially for expressing distances between geographical places. The U.S. and Great Britain are the only two developed nations use miles rather than kilometers on their road signs.