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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.| 4956746769 Femtometers | to common length units |
|---|---|
| 4956746769 fm | = 4.956746769E-6 meters (m) |
| 4956746769 fm | = 4.956746769E-9 kilometers (km) |
| 4956746769 fm | = 0.0004956746769 centimeters (cm) |
| 4956746769 fm | = 1.6262292549213E-5 feet (ft) |
| 4956746769 fm | = 0.00019514751059055 inches (in) |
| 4956746769 fm | = 5.4207641830709E-6 yards (yd) |
| 4956746769 fm | = 3.0799796494721E-9 miles (mi) |
| 4956746769 fm | = 5.23913621076E-22 light years (ly) |
| 4956746769 fm | = 0.018734163376902 pixels (PX) |
| 4956746769 fm | = 3.097966730625E+29 planck length (pl) |