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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+
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 Greek Plethron (pleth) is equal to 30.8 meters, while 1 Siriometer (sir) = 1.496E+17 meters.| 250 Greek Plethron | to common length units |
|---|---|
| 250 pleth | = 7700 meters (m) |
| 250 pleth | = 7.7 kilometers (km) |
| 250 pleth | = 770000 centimeters (cm) |
| 250 pleth | = 25262.467191601 feet (ft) |
| 250 pleth | = 303149.60629921 inches (in) |
| 250 pleth | = 8420.8223972004 yards (yd) |
| 250 pleth | = 4.7845581802275 miles (mi) |
| 250 pleth | = 8.1386745587147E-13 light years (ly) |
| 250 pleth | = 29102365.871164 pixels (PX) |
| 250 pleth | = 4.8125E+38 planck length (pl) |