"km" redirects here. For other uses, see KM (disambiguation).
kilometre
The main span of the Golden Gate Bridge is 1.28 kilometres (1,280 m).
General information
Unit system
SI
Unit of
length
Symbol
km
Conversions
1 km in ...
... is equal to ...
SI base units
1000 m
imperial/US units
0.62137 mi 1093.6 yd 3280.8 ft
nautical units
0.53996 nmi
The kilometre (SI symbol: km; /ˈkɪləmiːtər/ or /kɪˈlɒmətər/), spelt kilometer in American English and Philippine English, is a unit of length in the International System of Units (SI), equal to one thousand metres (kilo- being the SI prefix for 1000). It is the preferred measurement unit to express distances between geographical places on land in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is used.
The abbreviation km is commonly used to represent kilometre. The abbreviation Km is not recommended by the BIPM.[1][2] A slang term for the kilometre in the US, UK, and Canadian militaries is klick.[3]
^"Kilometre". Oxford Learner's Dictionaries. Retrieved 1 November 2019.
^"The International System of Units (SI)" (PDF). International Bureau of Weights and Measures (BIPM). 2019. pp. 147–149. Retrieved 8 January 2020.
^"MARINE CORPS JARGON" (PDF). hqmc.marines.mil. Retrieved 3 March 2017.
The kilometre (SI symbol: km; /ˈkɪləmiːtər/ or /kɪˈlɒmətər/), spelt kilometer in American English and Philippine English, is a unit of length in the International...
The square kilometre (square kilometer in American spelling; symbol: km2) is a multiple of the square metre, the SI unit of area or surface area. 1 km2...
In many countries, kilometre zero (also written km 0) or similar terms in other languages (also known as zero mile marker, zero milepost, control stations...
Antarctica is excluded, then population density rises to over 58 per square kilometre (150/sq mi). The European Commission's Joint Research Centre (JRC) has...
or road density (i.e. kilometres of road per square kilometre of land). In the European Union, kilometre per square kilometre is the unit of measure...
The 101st kilometre (Russian: 101-й километр, sto pervyy kilometr) is a colloquial phrase for restrictions on freedom of movement in the Soviet Union...
vertical km record belongs to Italian Philip Götsch, who in 2017 won the Kilomètre vertical de Fully with a time of 28:53. In 2021, the men's FKT (Fastest...
21°24′40″E / 30.72111°S 21.41111°E / -30.72111; 21.41111 The Square Kilometre Array (SKA) is an intergovernmental international radio telescope project...
The kilometre per hour (SI symbol: km/h; non-standard abbreviations: kph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one...
planning, and their related applications. The currently popular units are: kilometre (km) or kilometer is a metric unit used, outside the US, to measure the...
The Zero Kilometre Stone is a 3 m high limestone sculpture in Budapest that represents Kilometre Zero in Hungary. It consists of a zero sign, with an...
The 20 kilometre race walk is an Olympic athletics event that is competed by both men and women. The racewalking event is competed as a road race. Athletes...
gross tonne–kilometre and thousand gross tonne mile (kgtm) are units of measurement commonly used in rail transportation. Gross ton kilometre is the product...
corresponding power of 10. For example, 1 kilometre is 103 (one thousand) times the length of 1 metre, but 1 square kilometre is (103)2 (106, one million) times...
abbreviated MPs). A "kilometric point" is a term used in metricated areas, where distances are commonly measured in kilometres instead of miles. "Distance...
cubic metres 1 hm3 = 1000000 m3 = 1 GL Cubic kilometre the volume of a cube of side length one kilometre (1000 m) equal to a teralitre 1 km3 = 1000000000 m3...
200 kilometres (120 mi) from the Amundsen Sea. It is a c. 30-kilometre-wide (19 mi) mountain with parasitic vents and a caldera up to 8 kilometres (5 mi)...
train was buried next to a 4-kilometre (2.5-mile) stretch of track on Polish State Railways' Wrocław–Wałbrzych line at kilometre 65. Polish authorities sectioned...
3 It is also commonly known as the Chernobyl Exclusion Zone, the 30-Kilometre Zone, or simply The Zone.: p.2–5 Established by the Soviet Armed Forces...
The 10 kilometres race walk, or 10-kilometer racewalk, is a racewalking event. The event is competed as a road race. Athletes must always keep in contact...
Hundred Kilometre City' and 'Defending the North: Queensland in the Pacific War'. The Brisbane Institute curated the exhibition The 200 Kilometre City,...
The 100-kilometer race walk is a racewalking event. The event is competed as a road race. Athletes must always keep in contact with the ground and the...
The 20K run (20 kilometres, or approximately 12.4 miles) is a long distance foot race. It is a rarely held race that is not recognized as an Olympic event...
abbreviated as k: for example, prefixed to metre/meter or its abbreviation m, kilometre or km signifies a thousand metres. As such, people occasionally represent...
million metres per second). The millimetre (mm), centimetre (cm) and the kilometre (km), derived from the metre, are also commonly used units. In U.S. customary...
Global Information