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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 Femtometers (fm) is equal to 1.0E-15 meters, while 1 Siriometer (sir) = 1.496E+17 meters.| 498000 Femtometers | to common length units |
|---|---|
| 498000 fm | = 4.98E-10 meters (m) |
| 498000 fm | = 4.98E-13 kilometers (km) |
| 498000 fm | = 4.98E-8 centimeters (cm) |
| 498000 fm | = 1.6338582677165E-9 feet (ft) |
| 498000 fm | = 1.9606299212598E-8 inches (in) |
| 498000 fm | = 5.4461942257218E-10 yards (yd) |
| 498000 fm | = 3.0944285373419E-13 miles (mi) |
| 498000 fm | = 5.2637141951168E-26 light years (ly) |
| 498000 fm | = 1.8822049615376E-6 pixels (PX) |
| 498000 fm | = 3.1125E+25 planck length (pl) |