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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.| 1211000000 Greek Plethron | to common length units |
|---|---|
| 1211000000 pleth | = 37298800000 meters (m) |
| 1211000000 pleth | = 37298800 kilometers (km) |
| 1211000000 pleth | = 3729880000000 centimeters (cm) |
| 1211000000 pleth | = 122371391076.12 feet (ft) |
| 1211000000 pleth | = 1468456692913.4 inches (in) |
| 1211000000 pleth | = 40790463692.038 yards (yd) |
| 1211000000 pleth | = 23176399.825022 miles (mi) |
| 1211000000 pleth | = 3.9423739562414E-6 light years (ly) |
| 1211000000 pleth | = 1.4097186027992E+14 pixels (PX) |
| 1211000000 pleth | = 2.331175E+45 planck length (pl) |