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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+
The barleycorn is a small English unit of length equal to 1/3 of an inch (i.e., close to 0.8467 cm) still used in Great Britain and Ireland as a determiner of shoe sizes.
In relation to the base unit of [length] => (meters), 1 Siriometer (sir) is equal to 1.496E+17 meters, while 1 Barleycorns (bcorn) = 0.0084666666666667 meters.| 54000000000 Siriometer | to common length units |
|---|---|
| 54000000000 sir | = 8.0784E+27 meters (m) |
| 54000000000 sir | = 8.0784E+24 kilometers (km) |
| 54000000000 sir | = 8.0784E+29 centimeters (cm) |
| 54000000000 sir | = 2.6503937007874E+28 feet (ft) |
| 54000000000 sir | = 3.1804724409449E+29 inches (in) |
| 54000000000 sir | = 8.8346456692913E+27 yards (yd) |
| 54000000000 sir | = 5.0196850393701E+24 miles (mi) |
| 54000000000 sir | = 853863227988.58 light years (ly) |
| 54000000000 sir | = 3.053253927969E+31 pixels (PX) |
| 54000000000 sir | = 5.049E+62 planck length (pl) |