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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.| 1857021580 Femtometers | to common length units |
|---|---|
| 1857021580 fm | = 1.85702158E-6 meters (m) |
| 1857021580 fm | = 1.85702158E-9 kilometers (km) |
| 1857021580 fm | = 0.000185702158 centimeters (cm) |
| 1857021580 fm | = 6.0925904855643E-6 feet (ft) |
| 1857021580 fm | = 7.3111085826772E-5 inches (in) |
| 1857021580 fm | = 2.0308634951881E-6 yards (yd) |
| 1857021580 fm | = 1.1538997131751E-9 miles (mi) |
| 1857021580 fm | = 1.9628174400169E-22 light years (ly) |
| 1857021580 fm | = 0.0070186651236114 pixels (PX) |
| 1857021580 fm | = 1.1606384875E+29 planck length (pl) |