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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 Rems (rem) = 0.0042333328 meters.| 6997821621 Light Seconds | to common length units |
|---|---|
| 6997821621 ls | = 2097946921975800000 meters (m) |
| 6997821621 ls | = 2097946921975800 kilometers (km) |
| 6997821621 ls | = 2.0979469219758E+20 centimeters (cm) |
| 6997821621 ls | = 6.8830279592382E+18 feet (ft) |
| 6997821621 ls | = 8.2596335510858E+19 inches (in) |
| 6997821621 ls | = 2.2943426530794E+18 yards (yd) |
| 6997821621 ls | = 1.3036037801587E+15 miles (mi) |
| 6997821621 ls | = 221.74684726517 light years (ly) |
| 6997821621 ls | = 7.9292492080029E+21 pixels (PX) |
| 6997821621 ls | = 1.3112168262349E+53 planck length (pl) |