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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.| 694400 Siriometer | to common length units |
|---|---|
| 694400 sir | = 1.0388224E+23 meters (m) |
| 694400 sir | = 1.0388224E+20 kilometers (km) |
| 694400 sir | = 1.0388224E+25 centimeters (cm) |
| 694400 sir | = 3.4082099737533E+23 feet (ft) |
| 694400 sir | = 4.0898519685039E+24 inches (in) |
| 694400 sir | = 1.1360699912511E+23 yards (yd) |
| 694400 sir | = 6.4549431321085E+19 miles (mi) |
| 694400 sir | = 10980048.620653 light years (ly) |
| 694400 sir | = 3.9262583844105E+26 pixels (PX) |
| 694400 sir | = 6.49264E+57 planck length (pl) |