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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.
An ell is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip ..more definition+
In relation to the base unit of [length] => (meters), 1 Fermi (fermi) is equal to 1.0E-15 meters, while 1 Ells (eel) = 1.143 meters.| 505500 Fermi | to common length units |
|---|---|
| 505500 fermi | = 5.055E-10 meters (m) |
| 505500 fermi | = 5.055E-13 kilometers (km) |
| 505500 fermi | = 5.055E-8 centimeters (cm) |
| 505500 fermi | = 1.6584645669291E-9 feet (ft) |
| 505500 fermi | = 1.990157480315E-8 inches (in) |
| 505500 fermi | = 5.5282152230971E-10 yards (yd) |
| 505500 fermi | = 3.1410313767597E-13 miles (mi) |
| 505500 fermi | = 5.3429869992601E-26 light years (ly) |
| 505500 fermi | = 1.9105514218018E-6 pixels (PX) |
| 505500 fermi | = 3.159375E+25 planck length (pl) |