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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 Zettameters (Zm) is equal to 1.0E+21 meters, while 1 Siriometer (sir) = 1.496E+17 meters.| 300800 Zettameters | to common length units |
|---|---|
| 300800 Zm | = 3.008E+26 meters (m) |
| 300800 Zm | = 3.008E+23 kilometers (km) |
| 300800 Zm | = 3.008E+28 centimeters (cm) |
| 300800 Zm | = 9.8687664041995E+26 feet (ft) |
| 300800 Zm | = 1.1842519685039E+28 inches (in) |
| 300800 Zm | = 3.2895888013998E+26 yards (yd) |
| 300800 Zm | = 1.8690845462499E+23 miles (mi) |
| 300800 Zm | = 31793679315.083 light years (ly) |
| 300800 Zm | = 1.136882032993E+30 pixels (PX) |
| 300800 Zm | = 1.88E+61 planck length (pl) |