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A unit of length used to measure nuclear distances, = 10−15 meter. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); 1 fermi = 1 femtometer.
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.
In relation to the base unit of [length] => (meters), 1 Fermi (fermi) is equal to 1.0E-15 meters, while 1 X Unit (xu) = 1.002004E-13 meters.| 18900 Fermi | to common length units |
|---|---|
| 18900 fermi | = 1.89E-11 meters (m) |
| 18900 fermi | = 1.89E-14 kilometers (km) |
| 18900 fermi | = 1.89E-9 centimeters (cm) |
| 18900 fermi | = 6.2007874015748E-11 feet (ft) |
| 18900 fermi | = 7.4409448818898E-10 inches (in) |
| 18900 fermi | = 2.0669291338583E-11 yards (yd) |
| 18900 fermi | = 1.1743915533286E-14 miles (mi) |
| 18900 fermi | = 1.9976746644118E-27 light years (ly) |
| 18900 fermi | = 7.1433079865585E-8 pixels (PX) |
| 18900 fermi | = 1.18125E+24 planck length (pl) |