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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 Femtometers (fm) = 1.0E-15 meters.| 4450 Siriometer | to common length units |
|---|---|
| 4450 sir | = 6.6572E+20 meters (m) |
| 4450 sir | = 6.6572E+17 kilometers (km) |
| 4450 sir | = 6.6572E+22 centimeters (cm) |
| 4450 sir | = 2.1841207349081E+21 feet (ft) |
| 4450 sir | = 2.6209448818898E+22 inches (in) |
| 4450 sir | = 7.2804024496938E+20 yards (yd) |
| 4450 sir | = 4.1365923009624E+17 miles (mi) |
| 4450 sir | = 70364.654899059 light years (ly) |
| 4450 sir | = 2.5161074036041E+24 pixels (PX) |
| 4450 sir | = 4.16075E+55 planck length (pl) |