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The siriometer is a rarely used and an obsolete astronomical unit of length, defined to be equal to about one million astronomical units (au). One siriometer is approxim ..more definition+
In relation to the base unit of [length] => (meters), 1 Femtometers (fm) is equal to 1.0E-15 meters, while 1 Siriometer (sir) = 1.496E+17 meters.| 5037421947 Femtometers | to common length units |
|---|---|
| 5037421947 fm | = 5.037421947E-6 meters (m) |
| 5037421947 fm | = 5.037421947E-9 kilometers (km) |
| 5037421947 fm | = 0.0005037421947 centimeters (cm) |
| 5037421947 fm | = 1.6526974891732E-5 feet (ft) |
| 5037421947 fm | = 0.00019832369870079 inches (in) |
| 5037421947 fm | = 5.5089916305774E-6 yards (yd) |
| 5037421947 fm | = 3.1301088810099E-9 miles (mi) |
| 5037421947 fm | = 5.3244075118909E-22 light years (ly) |
| 5037421947 fm | = 0.0190390774739 pixels (PX) |
| 5037421947 fm | = 3.148388716875E+29 planck length (pl) |