AU to ly
92 unitsResult1.581251e-5
0.00001581250741ly
1 AU × 0.00001581250741 = 0.00001581250741 ly
Convert Astronomical unit to Light year (AU to ly)
1 astronomical unit = 0.00001581250741 light years. Convert astronomical units to light years instantly, with the exact factor, the formula and a reference table of common values.
Formula
light years = astronomical units × 0.00001581250741
AU to ly conversion table
| AU | ly |
|---|---|
| 1 AU | 0.00001581250741 ly |
| 2 AU | 0.00003162501482 ly |
| 3 AU | 0.00004743752223 ly |
| 5 AU | 0.00007906253704 ly |
| 10 AU | 0.0001581250741 ly |
| 20 AU | 0.0003162501482 ly |
| 50 AU | 0.0007906253704 ly |
| 100 AU | 0.001581250741 ly |
| 250 AU | 0.003953126852 ly |
| 500 AU | 0.007906253704 ly |
| 1000 AU | 0.01581250741 ly |
What is a astronomical unit?
One astronomical unit is the average distance from the Earth to the Sun, close to 149.6 million kilometers. Sunlight takes about eight minutes and twenty seconds to cross it.
The unit makes the solar system easy to picture. Mars orbits at about 1.5 AU, Jupiter at roughly 5.2 AU, and Neptune at about 30 AU. Beyond the planets, astronomers switch to light years and parsecs.
In writing, the astronomical unit is usually shortened to "AU". One astronomical unit is 149597870700 meters, and that ratio is what every figure on this page is built from.