

1 chain (ch) = 0.0201168 kilometer (km). Chain (ch) is a unit of Length used in Standard system. Kilometer (km) is a unit of Length used in Metric system.
Kilometer  Unit of Distance / LengthUnit Symbol/Abbreviation: km Where the unit used in the World: The kilometer is used as a unit used to measure distances or lengths. Definition of the Unit: The kilometer (kilometre in UK spelling) is a unit of length/distance in the metric system (SI Unit system) equivalent to one thousand meters. 1 km is equivalent to 0.62137 miles. History of the Unit: Although the meter was defined in 1799 in France, the kilometer was first adopted for everyday use by the Dutch in 1817 under local name of the mijl. The myriametre (10000 meters) and "lieues de Poste" (Postal leagues, 4288 meters) were preferred to the "kilometer" for everyday use in France in 19th century. In the mid 19th century the kilometer was already in everyday use in the Italy and in Netherlands and the myriametre was still in use in France. The CIPM (The International Committee for Weights and Measures) officially abolished the prefix "myria" and the "myriametre" in 1935, leaving the kilometer as the recognised unit of length instead of myriametre. Where it's used: The kilometer is commonly used on road signs to indicate the distance to travel to a given location, on maps to indicate scale, for odometer indication in automotive industry. It is also the most popular unit for describing the distance between geographical points and locations. Equivalents in other units and scales:
1 km is equivalent to 0.621371 mi. 
Related converters: Kilometers to Feet (km to ft) Kilometers to Meters (km to m) Kilometers to Miles (km to mi) Kilometers to Yards (km to yd) Centimeters to Inches (cm to in ) Feet to Inches (ft to in ) Feet to Kilometers (ft to km ) Feet to Meters (ft to m ) Feet to Yards (ft to yd ) Inches to Centimeters (in to cm ) Inches to Feet (in to ft ) Inches to Meters (in to m ) Inches to Millimeters (in to mm ) Kilometers to Miles (km to mi ) Meters to Feet (m to ft ) Meters to Inches (m to in ) Meters to Yards (m to yd ) Miles to Kilometers (mi to km ) Millimeters to Inches (mm to in ) Yards to Feet (yd to ft ) Yards to Inches (yd to in ) Yards to Meters (yd to m ) 

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