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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+
In relation to the base unit of [length] => (meters), 1 Light Seconds (ls) is equal to 299800000 meters, while 1 Zolls (zoll) = 0.0254 meters.| 1991000000000 Light Seconds | to common length units |
|---|---|
| 1991000000000 ls | = 5.969018E+20 meters (m) |
| 1991000000000 ls | = 5.969018E+17 kilometers (km) |
| 1991000000000 ls | = 5.969018E+22 centimeters (cm) |
| 1991000000000 ls | = 1.9583392388451E+21 feet (ft) |
| 1991000000000 ls | = 2.3500070866142E+22 inches (in) |
| 1991000000000 ls | = 6.5277974628171E+20 yards (yd) |
| 1991000000000 ls | = 3.7089758311461E+17 miles (mi) |
| 1991000000000 ls | = 63090.772645598 light years (ly) |
| 1991000000000 ls | = 2.256007087371E+24 pixels (PX) |
| 1991000000000 ls | = 3.73063625E+55 planck length (pl) |