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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+
Plethron is a measurement used in Ancient times, equal to 100 Greek feet (pous). It was roughly the width of a typical athletic running-track, and was used as the st ..more definition+
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Greek Plethron (pleth) = 30.8 meters.| 3800 Siriometer | to common length units |
|---|---|
| 3800 sir | = 5.6848E+20 meters (m) |
| 3800 sir | = 5.6848E+17 kilometers (km) |
| 3800 sir | = 5.6848E+22 centimeters (cm) |
| 3800 sir | = 1.8650918635171E+21 feet (ft) |
| 3800 sir | = 2.2381102362205E+22 inches (in) |
| 3800 sir | = 6.2169728783902E+20 yards (yd) |
| 3800 sir | = 3.5323709536308E+17 miles (mi) |
| 3800 sir | = 60086.671599197 light years (ly) |
| 3800 sir | = 2.1485860974597E+24 pixels (PX) |
| 3800 sir | = 3.553E+55 planck length (pl) |