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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.
In relation to the base unit of [length] => (meters), 1 Light Days (ld) is equal to 25900000000000 meters, while 1 Fermi (fermi) = 1.0E-15 meters.| 6512506184 Light Days | to common length units |
|---|---|
| 6512506184 ld | = 1.686739101656E+23 meters (m) |
| 6512506184 ld | = 1.686739101656E+20 kilometers (km) |
| 6512506184 ld | = 1.686739101656E+25 centimeters (cm) |
| 6512506184 ld | = 5.5339209371916E+23 feet (ft) |
| 6512506184 ld | = 6.6407051246299E+24 inches (in) |
| 6512506184 ld | = 1.8446403123972E+23 yards (yd) |
| 6512506184 ld | = 1.0480910865893E+20 miles (mi) |
| 6512506184 ld | = 17828338.459529 light years (ly) |
| 6512506184 ld | = 6.3750777228041E+26 pixels (PX) |
| 6512506184 ld | = 1.054211938535E+58 planck length (pl) |