| kilometre | |
|---|---|
.jpg) The main span of the 25 de Abril Bridge is 1.013 kilometres (1,013 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 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.