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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 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Fods (fod) = 0.3141 meters.| 399400 Siriometer | to common length units |
|---|---|
| 399400 sir | = 5.975024E+22 meters (m) |
| 399400 sir | = 5.975024E+19 kilometers (km) |
| 399400 sir | = 5.975024E+24 centimeters (cm) |
| 399400 sir | = 1.9603097112861E+23 feet (ft) |
| 399400 sir | = 2.3523716535433E+24 inches (in) |
| 399400 sir | = 6.534365704287E+22 yards (yd) |
| 399400 sir | = 3.7127077865267E+19 miles (mi) |
| 399400 sir | = 6315425.4307156 light years (ly) |
| 399400 sir | = 2.2582770719089E+26 pixels (PX) |
| 399400 sir | = 3.73439E+57 planck length (pl) |