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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.| 72 Femtometers | to common length units |
|---|---|
| 72 fm | = 7.2E-14 meters (m) |
| 72 fm | = 7.2E-17 kilometers (km) |
| 72 fm | = 7.2E-12 centimeters (cm) |
| 72 fm | = 2.3622047244094E-13 feet (ft) |
| 72 fm | = 2.8346456692913E-12 inches (in) |
| 72 fm | = 7.8740157480315E-14 yards (yd) |
| 72 fm | = 4.4738725841088E-17 miles (mi) |
| 72 fm | = 7.6101891977592E-30 light years (ly) |
| 72 fm | = 2.7212601853556E-10 pixels (PX) |
| 72 fm | = 4.5E+21 planck length (pl) |