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The astronomical unit (symbol au, or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, f ..more definition+
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 Astronomical Unit (au) is equal to 149597870700 meters, while 1 Kilometers (km) = 1000 meters.| 1978000000 Astronomical Unit | to common length units |
|---|---|
| 1978000000 au | = 2.959045882446E+20 meters (m) |
| 1978000000 au | = 2.959045882446E+17 kilometers (km) |
| 1978000000 au | = 2.959045882446E+22 centimeters (cm) |
| 1978000000 au | = 9.7081557823032E+20 feet (ft) |
| 1978000000 au | = 1.1649786938764E+22 inches (in) |
| 1978000000 au | = 3.2360519274344E+20 yards (yd) |
| 1978000000 au | = 1.8386658678604E+17 miles (mi) |
| 1978000000 au | = 31276.248625367 light years (ly) |
| 1978000000 au | = 1.1183796870196E+24 pixels (PX) |
| 1978000000 au | = 1.8494036765288E+55 planck length (pl) |