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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 Zettameters (Zm) = 1.0E+21 meters.| 8464450696 Siriometer | to common length units |
|---|---|
| 8464450696 sir | = 1.2662818241216E+27 meters (m) |
| 8464450696 sir | = 1.2662818241216E+24 kilometers (km) |
| 8464450696 sir | = 1.2662818241216E+29 centimeters (cm) |
| 8464450696 sir | = 4.1544679269081E+27 feet (ft) |
| 8464450696 sir | = 4.9853615122898E+28 inches (in) |
| 8464450696 sir | = 1.3848226423027E+27 yards (yd) |
| 8464450696 sir | = 7.868310467629E+23 miles (mi) |
| 8464450696 sir | = 133842281378.46 light years (ly) |
| 8464450696 sir | = 4.7859476547522E+30 pixels (PX) |
| 8464450696 sir | = 7.91426140076E+61 planck length (pl) |