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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+
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 meters), used especially for measuring the depth of water.
There a ..more definition+
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Fathoms (fath) = 1.8288 meters.| 30900 Siriometer | to common length units |
|---|---|
| 30900 sir | = 4.62264E+21 meters (m) |
| 30900 sir | = 4.62264E+18 kilometers (km) |
| 30900 sir | = 4.62264E+23 centimeters (cm) |
| 30900 sir | = 1.5166141732283E+22 feet (ft) |
| 30900 sir | = 1.819937007874E+23 inches (in) |
| 30900 sir | = 5.0553805774278E+21 yards (yd) |
| 30900 sir | = 2.872375328084E+18 miles (mi) |
| 30900 sir | = 488599.51379347 light years (ly) |
| 30900 sir | = 1.7471397476711E+25 pixels (PX) |
| 30900 sir | = 2.88915E+56 planck length (pl) |