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A light-year (abbreviation: ly), sometimes referred to incorrectly as a light year, is a unit of length used informally to express astronomical distances. It is approxi ..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 Light Years (ly) is equal to 9461000000000000 meters, while 1 Kilometers (km) = 1000 meters.| 1971000000000 Light Years | to common length units |
|---|---|
| 1971000000000 ly | = 1.8647631E+28 meters (m) |
| 1971000000000 ly | = 1.8647631E+25 kilometers (km) |
| 1971000000000 ly | = 1.8647631E+30 centimeters (cm) |
| 1971000000000 ly | = 6.1179891732283E+28 feet (ft) |
| 1971000000000 ly | = 7.341587007874E+29 inches (in) |
| 1971000000000 ly | = 2.0393297244094E+28 yards (yd) |
| 1971000000000 ly | = 1.1587100706872E+25 miles (mi) |
| 1971000000000 ly | = 1971000000000 light years (ly) |
| 1971000000000 ly | = 7.0479244154865E+31 pixels (PX) |
| 1971000000000 ly | = 1.1654769375E+63 planck length (pl) |