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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.| 478000000 Kilometers | to common length units |
|---|---|
| 478000000 km | = 478000000000 meters (m) |
| 478000000 km | = 478000000 kilometers (km) |
| 478000000 km | = 47800000000000 centimeters (cm) |
| 478000000 km | = 1568241469816.3 feet (ft) |
| 478000000 km | = 18818897637795 inches (in) |
| 478000000 km | = 522747156605.42 yards (yd) |
| 478000000 km | = 297015429.88945 miles (mi) |
| 478000000 km | = 5.0523200507346E-5 light years (ly) |
| 478000000 km | = 1.8066144008333E+15 pixels (PX) |
| 478000000 km | = 2.9875E+46 planck length (pl) |