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The kilometer (SI symbol: km) or kilometre (British spelling) is a unit of length in the metric system, equal to 1000 meters (kilo- being the SI prefix for 1000). It is ..more definition+
In relation to the base unit of [length] => (meters), 1 Kilometers (km) is equal to 1000 meters, while 1 Roman Actus (actus) = 35.5 meters.| 420800 Kilometers | to common length units |
|---|---|
| 420800 km | = 420800000 meters (m) |
| 420800 km | = 420800 kilometers (km) |
| 420800 km | = 42080000000 centimeters (cm) |
| 420800 km | = 1380577427.8215 feet (ft) |
| 420800 km | = 16566929133.858 inches (in) |
| 420800 km | = 460192475.94051 yards (yd) |
| 420800 km | = 261472.99769347 miles (mi) |
| 420800 km | = 4.4477327978015E-8 light years (ly) |
| 420800 km | = 1590425397218.9 pixels (PX) |
| 420800 km | = 2.63E+43 planck length (pl) |