# Astronomy Conversions

### Result

1 Light Year =
9,460,730,472,580.8 Kilometers
(exact result)

### Display Result As

Light Years

A light year is the distance that light travels in one year.

The year used by the International Astronomical Union is 365.25 days. Therefore a light year is exactly 9,460,730,472,580.8 kilometers.

Kilometers

A kilometer is a unit of length equal to 1,000 meters, or about 0.621 miles.

In most of the world, it is the most common unit for measuring distance between places.

## Astronomy Conversion Tables

(some results are rounded)
1 Astronomical Unit = 1 Kilometer = 1 Light Minute = 1 Light Second = 1 Light Year = 1 6.6846 x 10-9 0.1202 0.002004 63,241 149,597,871 1 17,987,547 299,792 9.4607 x 1012 8.3167 5.5594 x 10-8 1 0.01667 525,960 499.00 3.3356 x 10-6 60 1 31,557,600 1.5813 x 10-5 1.057 x 10-13 1.9013 x 10-6 3.1688 x 10-8 1 92,955,807 0.6214 11,176,944 186,282 5.8786 x 1012 4.8481 x 10-6 3.2408 x 10-14 5.8294 x 10-7 9.7156 x 10-9 0.3066
1 Mile = 1 Parsec = 1.0758 x 10-8 206,265 1.6093 3.0857 x 1013 8.947 x 10-8 1,715,452 5.3682 x 10-6 102,927,125 1.7011 x 10-13 3.2616 1 1.9174 x 1013 5.2155 x 10-14 1