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The x unit (symbol xu) is a unit of length approximately equal to 0.1 pm (10−13 m). It is used to quote the wavelength of X-rays and gamma rays.
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 X Unit (xu) is equal to 1.002004E-13 meters, while 1 Light Seconds (ls) = 299800000 meters.| 401900 X Unit | to common length units |
|---|---|
| 401900 xu | = 4.027054076E-8 meters (m) |
| 401900 xu | = 4.027054076E-11 kilometers (km) |
| 401900 xu | = 4.027054076E-6 centimeters (cm) |
| 401900 xu | = 1.3212119671916E-7 feet (ft) |
| 401900 xu | = 1.5854543606299E-6 inches (in) |
| 401900 xu | = 4.4040398906387E-8 yards (yd) |
| 401900 xu | = 2.5022953924083E-11 miles (mi) |
| 401900 xu | = 4.2564782538844E-24 light years (ly) |
| 401900 xu | = 0.00015220363779573 pixels (PX) |
| 401900 xu | = 2.5169087975E+27 planck length (pl) |