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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+
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Femtometers (fm) = 1.0E-15 meters.| 4280000000000 Siriometer | to common length units |
|---|---|
| 4280000000000 sir | = 6.40288E+29 meters (m) |
| 4280000000000 sir | = 6.40288E+26 kilometers (km) |
| 4280000000000 sir | = 6.40288E+31 centimeters (cm) |
| 4280000000000 sir | = 2.1006824146982E+30 feet (ft) |
| 4280000000000 sir | = 2.5208188976378E+31 inches (in) |
| 4280000000000 sir | = 7.0022747156605E+29 yards (yd) |
| 4280000000000 sir | = 3.9785651793526E+26 miles (mi) |
| 4280000000000 sir | = 67676566959095 light years (ly) |
| 4280000000000 sir | = 2.4199864466125E+33 pixels (PX) |
| 4280000000000 sir | = 4.0018E+64 planck length (pl) |