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The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space ..more definition+
The yard (abbreviation; yd) is an English unit of length, in both the British imperial and US customary systems of measurement, that comprises 3 feet or 36 inches. It is by i ..more definition+
In relation to the base unit of [length] => (meters), 1 Light Seconds (ls) is equal to 299800000 meters, while 1 Yards (yd) = 0.9144 meters.| 639000000000 Light Seconds | to common length units |
|---|---|
| 639000000000 ls | = 1.915722E+20 meters (m) |
| 639000000000 ls | = 1.915722E+17 kilometers (km) |
| 639000000000 ls | = 1.915722E+22 centimeters (cm) |
| 639000000000 ls | = 6.2851771653543E+20 feet (ft) |
| 639000000000 ls | = 7.5422125984252E+21 inches (in) |
| 639000000000 ls | = 2.0950590551181E+20 yards (yd) |
| 639000000000 ls | = 1.1903744631353E+17 miles (mi) |
| 639000000000 ls | = 20248.620653208 light years (ly) |
| 639000000000 ls | = 7.2405250066803E+23 pixels (PX) |
| 639000000000 ls | = 1.19732625E+55 planck length (pl) |