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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 digit or finger is an ancient and obsolete non-SI unit of measurement of length. It was originally based on the breadth of a human finger. It was a fundamental unit of l ..more definition+
In relation to the base unit of [length] => (meters), 1 X Unit (xu) is equal to 1.002004E-13 meters, while 1 Digits (digit) = 0.01905 meters.| 21 X Unit | to common length units |
|---|---|
| 21 xu | = 2.1042084E-12 meters (m) |
| 21 xu | = 2.1042084E-15 kilometers (km) |
| 21 xu | = 2.1042084E-10 centimeters (cm) |
| 21 xu | = 6.9035708661417E-12 feet (ft) |
| 21 xu | = 8.2842850393701E-11 inches (in) |
| 21 xu | = 2.3011902887139E-12 yards (yd) |
| 21 xu | = 1.3074944822238E-15 miles (mi) |
| 21 xu | = 2.2240866715992E-28 light years (ly) |
| 21 xu | = 7.9529146397373E-9 pixels (PX) |
| 21 xu | = 1.31513025E+23 planck length (pl) |