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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 millimeter (symbol = mm), or millimetre (British spelling) is a unit of length in the metric system, equal to one thousandth of a meter, which is the SI base unit ..more definition+
In relation to the base unit of [length] => (meters), 1 X Unit (xu) is equal to 1.002004E-13 meters, while 1 Millimeters (mm) = 0.001 meters.| 15 X Unit | to common length units |
|---|---|
| 15 xu | = 1.503006E-12 meters (m) |
| 15 xu | = 1.503006E-15 kilometers (km) |
| 15 xu | = 1.503006E-10 centimeters (cm) |
| 15 xu | = 4.9311220472441E-12 feet (ft) |
| 15 xu | = 5.9173464566929E-11 inches (in) |
| 15 xu | = 1.6437073490814E-12 yards (yd) |
| 15 xu | = 9.3392463015987E-16 miles (mi) |
| 15 xu | = 1.5886333368566E-28 light years (ly) |
| 15 xu | = 5.6806533140981E-9 pixels (PX) |
| 15 xu | = 9.3937875E+22 planck length (pl) |