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A light-year (abbreviation: ly), sometimes referred to incorrectly as a light year, is a unit of length used informally to express astronomical distances. It is approxi ..more definition+
In relation to the base unit of [length] => (meters), 1 Femtometers (fm) is equal to 1.0E-15 meters, while 1 Light Years (ly) = 9461000000000000 meters.| 205000 Femtometers | to common length units |
|---|---|
| 205000 fm | = 2.05E-10 meters (m) |
| 205000 fm | = 2.05E-13 kilometers (km) |
| 205000 fm | = 2.05E-8 centimeters (cm) |
| 205000 fm | = 6.7257217847769E-10 feet (ft) |
| 205000 fm | = 8.0708661417323E-9 inches (in) |
| 205000 fm | = 2.2419072615923E-10 yards (yd) |
| 205000 fm | = 1.2738109440865E-13 miles (mi) |
| 205000 fm | = 2.1667899799176E-26 light years (ly) |
| 205000 fm | = 7.7480324721931E-7 pixels (PX) |
| 205000 fm | = 1.28125E+25 planck length (pl) |