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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 Poles (pole) = 5.0292 meters.| 421000 Siriometer | to common length units |
|---|---|
| 421000 sir | = 6.29816E+22 meters (m) |
| 421000 sir | = 6.29816E+19 kilometers (km) |
| 421000 sir | = 6.29816E+24 centimeters (cm) |
| 421000 sir | = 2.0663254593176E+23 feet (ft) |
| 421000 sir | = 2.4795905511811E+24 inches (in) |
| 421000 sir | = 6.8877515310586E+22 yards (yd) |
| 421000 sir | = 3.9134951881015E+19 miles (mi) |
| 421000 sir | = 6656970.721911 light years (ly) |
| 421000 sir | = 2.3804072290277E+26 pixels (PX) |
| 421000 sir | = 3.93635E+57 planck length (pl) |