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 approximately 149.6 petametres; 4.848 parsecs; 15.8 ..more definition+
In relation to the base unit of [length] => (meters), 1 Light Days (ld) is equal to 25900000000000 meters, while 1 Siriometer (sir) = 1.496E+17 meters.| 1 Light Days | to common length units |
|---|---|
| 1 ld | = 25900000000000 meters (m) |
| 1 ld | = 25900000000 kilometers (km) |
| 1 ld | = 2.59E+15 centimeters (cm) |
| 1 ld | = 84973753280840 feet (ft) |
| 1 ld | = 1.0196850393701E+15 inches (in) |
| 1 ld | = 28324584426947 yards (yd) |
| 1 ld | = 16093513878.947 miles (mi) |
| 1 ld | = 0.0027375541697495 light years (ly) |
| 1 ld | = 9.7889776112098E+16 pixels (PX) |
| 1 ld | = 1.61875E+48 planck length (pl) |
| Light Days | to Siriometer (table conversion) |
|---|---|
| 1 ld | = 0.00017312834224599 sir |
| 2 ld | = 0.00034625668449198 sir |
| 3 ld | = 0.00051938502673797 sir |
| 4 ld | = 0.00069251336898396 sir |
| 5 ld | = 0.00086564171122995 sir |
| 6 ld | = 0.0010387700534759 sir |
| 7 ld | = 0.0012118983957219 sir |
| 8 ld | = 0.0013850267379679 sir |
| 9 ld | = 0.0015581550802139 sir |
| 10 ld | = 0.0017312834224599 sir |
| 20 ld | = 0.0034625668449198 sir |
| 30 ld | = 0.0051938502673797 sir |
| 40 ld | = 0.0069251336898396 sir |
| 50 ld | = 0.0086564171122995 sir |
| 60 ld | = 0.010387700534759 sir |
| 70 ld | = 0.012118983957219 sir |
| 80 ld | = 0.013850267379679 sir |
| 90 ld | = 0.015581550802139 sir |
| 100 ld | = 0.017312834224599 sir |
| 200 ld | = 0.034625668449198 sir |
| 300 ld | = 0.051938502673797 sir |
| 400 ld | = 0.069251336898396 sir |
| 500 ld | = 0.086564171122995 sir |
| 600 ld | = 0.10387700534759 sir |
| 700 ld | = 0.12118983957219 sir |
| 800 ld | = 0.13850267379679 sir |
| 900 ld | = 0.15581550802139 sir |
| 1000 ld | = 0.17312834224599 sir |
| 2000 ld | = 0.34625668449198 sir |
| 4000 ld | = 0.69251336898396 sir |
| 5000 ld | = 0.86564171122995 sir |
| 7500 ld | = 1.2984625668449 sir |
| 10000 ld | = 1.7312834224599 sir |
| 25000 ld | = 4.3282085561497 sir |
| 50000 ld | = 8.6564171122995 sir |
| 100000 ld | = 17.312834224599 sir |
| 1000000 ld | = 173.12834224599 sir |
| 1000000000 ld | = 173128.34224599 sir |