# Convert 1 Light Year to Kilometers

How long is 1 light year? How far is 1 light year in kilometers? 1 light years to km conversion.
1 Light Year =
9.4607305 x 1012 Kilometers
(rounded to 8 digits)
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.
A kilometer, or kilometre, 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.
Light Years to Kilometers Conversions
(some results rounded)
light years km
1.00 9.4607 x 1012
1.01 9.5553 x 1012
1.02 9.6499 x 1012
1.03 9.7446 x 1012
1.04 9.8392 x 1012
1.05 9.9338 x 1012
1.06 1.0028 x 1013
1.07 1.0123 x 1013
1.08 1.0218 x 1013
1.09 1.0312 x 1013
1.10 1.0407 x 1013
1.11 1.0501 x 1013
1.12 1.0596 x 1013
1.13 1.0691 x 1013
1.14 1.0785 x 1013
1.15 1.0880 x 1013
1.16 1.0974 x 1013
1.17 1.1069 x 1013
1.18 1.1164 x 1013
1.19 1.1258 x 1013
1.20 1.1353 x 1013
1.21 1.1447 x 1013
1.22 1.1542 x 1013
1.23 1.1637 x 1013
1.24 1.1731 x 1013
light years km
1.25 1.1826 x 1013
1.26 1.1921 x 1013
1.27 1.2015 x 1013
1.28 1.2110 x 1013
1.29 1.2204 x 1013
1.30 1.2299 x 1013
1.31 1.2394 x 1013
1.32 1.2488 x 1013
1.33 1.2583 x 1013
1.34 1.2677 x 1013
1.35 1.2772 x 1013
1.36 1.2867 x 1013
1.37 1.2961 x 1013
1.38 1.3056 x 1013
1.39 1.3150 x 1013
1.40 1.3245 x 1013
1.41 1.3340 x 1013
1.42 1.3434 x 1013
1.43 1.3529 x 1013
1.44 1.3623 x 1013
1.45 1.3718 x 1013
1.46 1.3813 x 1013
1.47 1.3907 x 1013
1.48 1.4002 x 1013
1.49 1.4096 x 1013
light years km
1.50 1.4191 x 1013
1.51 1.4286 x 1013
1.52 1.4380 x 1013
1.53 1.4475 x 1013
1.54 1.4570 x 1013
1.55 1.4664 x 1013
1.56 1.4759 x 1013
1.57 1.4853 x 1013
1.58 1.4948 x 1013
1.59 1.5043 x 1013
1.60 1.5137 x 1013
1.61 1.5232 x 1013
1.62 1.5326 x 1013
1.63 1.5421 x 1013
1.64 1.5516 x 1013
1.65 1.5610 x 1013
1.66 1.5705 x 1013
1.67 1.5799 x 1013
1.68 1.5894 x 1013
1.69 1.5989 x 1013
1.70 1.6083 x 1013
1.71 1.6178 x 1013
1.72 1.6272 x 1013
1.73 1.6367 x 1013
1.74 1.6462 x 1013
light years km
1.75 1.6556 x 1013
1.76 1.6651 x 1013
1.77 1.6745 x 1013
1.78 1.6840 x 1013
1.79 1.6935 x 1013
1.80 1.7029 x 1013
1.81 1.7124 x 1013
1.82 1.7219 x 1013
1.83 1.7313 x 1013
1.84 1.7408 x 1013
1.85 1.7502 x 1013
1.86 1.7597 x 1013
1.87 1.7692 x 1013
1.88 1.7786 x 1013
1.89 1.7881 x 1013
1.90 1.7975 x 1013
1.91 1.8070 x 1013
1.92 1.8165 x 1013
1.93 1.8259 x 1013
1.94 1.8354 x 1013
1.95 1.8448 x 1013
1.96 1.8543 x 1013
1.97 1.8638 x 1013
1.98 1.8732 x 1013
1.99 1.8827 x 1013