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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.| 221000 Siriometer | to common length units |
|---|---|
| 221000 sir | = 3.30616E+22 meters (m) |
| 221000 sir | = 3.30616E+19 kilometers (km) |
| 221000 sir | = 3.30616E+24 centimeters (cm) |
| 221000 sir | = 1.0846981627297E+23 feet (ft) |
| 221000 sir | = 1.3016377952756E+24 inches (in) |
| 221000 sir | = 3.6156605424322E+22 yards (yd) |
| 221000 sir | = 2.0543525809274E+19 miles (mi) |
| 221000 sir | = 3494514.3219533 light years (ly) |
| 221000 sir | = 1.249572440891E+26 pixels (PX) |
| 221000 sir | = 2.06635E+57 planck length (pl) |