kilomètres

Kilomètres is a unit of length in the metric system. It is equal to one thousand meters. The symbol for kilometer is km. The kilometer is the standard unit of distance used in most countries around the world for everyday purposes, such as measuring the length of roads and the distance between cities.

The meter is the base unit of length in the International System of Units (SI). A kilometer is derived from the meter by applying the prefix "kilo-", which means 1000. Therefore, 1 kilometer is equivalent to 1000 meters. To convert kilometers to meters, you multiply the number of kilometers by 1000. Conversely, to convert meters to kilometers, you divide the number of meters by 1000.

The kilometer is a practical unit for measuring longer distances. For instance, a marathon race is approximately 42.195 kilometers. The distance between New York City and Los Angeles is roughly 3,940 kilometers. In aviation and navigation, nautical miles are often used, but kilometers are still widely employed for terrestrial measurements. The concept of a kilometer was established during the French Revolution as part of the metric system's standardization efforts.