Convert Astronomical Unit to Light Year - Free Calculator
Fast, accurate all length conversions conversion calculator. Convert astronomical unit to light year instantly with precise results.
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How to Convert Astronomical Unit to Light Year
Use this free online calculator to convert Astronomical Unit to Light Year instantly. This all length conversions conversion tool provides accurate results for all your measurement needs.
Quick Reference
Astronomical Unit to Light Year Conversion Formula
To convert Astronomical Unit to Light Year, multiply by 1.582e-5.
To convert Light Year back to Astronomical Unit, divide by 1.582e-5 (or multiply by 63197.79).
About These Units
About Astronomical Unit
An Astronomical Unit is approximately the mean distance between the Earth and the Sun. It is a derived constant and used to indicate distances within the solar system. Its formal definition is the radius of an unperturbed circular orbit a massless body would revolve about the sun in 2*(pi)/k days (i.e., 365.2568983.... days), where k is defined as the Gaussian constant exactly equal to 0.01720209895. Since an AU is based on radius of a circular orbit, one AU is actually slightly less than the average distance between the Earth and the Sun (approximately 150 million km or 93 million miles).
About Light Year
The distance that light, moving at a constant speed of 300,000 km/s, travels in one year. One light year is about 10 trillion kilometers.
Astronomical Unit to Light Year Conversion Table
| Astronomical Unit | Light Year | Light Year | Astronomical Unit |
|---|---|---|---|
| 0.1 | 1.582e-6 | 0.1 | 6319.78 |
| 0.5 | 7.912e-6 | 0.5 | 31598.90 |
| 1 | 1.582e-5 | 1 | 63197.79 |
| 2 | 3.165e-5 | 2 | 126395.58 |
| 5 | 7.912e-5 | 5 | 315988.95 |
| 10 | 1.582e-4 | 10 | 631977.91 |
| 20 | 3.165e-4 | 20 | 1263955.82 |
| 25 | 3.956e-4 | 25 | 1579944.77 |
| 50 | 7.912e-4 | 50 | 3159889.55 |
| 100 | 1.582e-3 | 100 | 6319779.09 |
| 250 | 3.956e-3 | 250 | 15799447.73 |
| 500 | 7.912e-3 | 500 | 31598895.46 |
| 1000 | 0.015823 | 1000 | 63197790.93 |
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