Convert Light Years to Kilometers
1 light year = 9,460,730,472,581 kilometers. Type any value below to convert in either direction — the calculation happens in your browser.
Light Years to Kilometers formula
Multiply the number of light years by 9460730472581 to get kilometers.
kilometers = light years × 9460730472581To go the other way: divide the number of kilometers by 9460730472581, or multiply by 1.057001e-13.
light years = kilometers ÷ 9460730472581Light Years to Kilometers conversion table
| Light Years | Kilometers |
|---|---|
| 1 ly | 9,460,730,472,581 km |
| 2 ly | 18,921,460,945,162 km |
| 3 ly | 28,382,191,417,742 km |
| 4 ly | 37,842,921,890,323 km |
| 5 ly | 47,303,652,362,904 km |
| 6 ly | 56,764,382,835,485 km |
| 7 ly | 66,225,113,308,066 km |
| 8 ly | 75,685,843,780,646 km |
| 9 ly | 85,146,574,253,227 km |
| 10 ly | 94,607,304,725,808 km |
| 15 ly | 141,910,957,088,712 km |
| 20 ly | 189,214,609,451,616 km |
| 25 ly | 236,518,261,814,520 km |
| 30 ly | 283,821,914,177,424 km |
| 40 ly | 378,429,218,903,232 km |
| 50 ly | 473,036,523,629,040 km |
| 75 ly | 709,554,785,443,560 km |
| 100 ly | 946,073,047,258,080 km |
| 250 ly | 2.365183e+15 km |
| 500 ly | 4.730365e+15 km |
| 1,000 ly | 9.460730e+15 km |
Kilometers to Light Years conversion table
| Kilometers | Light Years |
|---|---|
| 1 km | 1.057001e-13 ly |
| 2 km | 2.114002e-13 ly |
| 3 km | 3.171003e-13 ly |
| 4 km | 4.228003e-13 ly |
| 5 km | 5.285004e-13 ly |
| 6 km | 6.342005e-13 ly |
| 7 km | 7.399006e-13 ly |
| 8 km | 8.456007e-13 ly |
| 9 km | 9.513008e-13 ly |
| 10 km | 1.057001e-12 ly |
About the light year
A light year is the distance light travels in one Julian year, about 9.46 trillion kilometres.
About the kilometer
A kilometre is 1,000 metres and is the standard unit for road distances in most of the world.
Frequently asked questions
How many kilometers are in a light year?
There are 9,460,730,472,581 kilometers in one light year.
How many light years are in a kilometer?
There are 1.057001e-13 light years in one kilometer.
Is this conversion exact?
The ratio between the light year and the kilometer is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 light years in kilometers?
10 light years equals 94,607,304,725,808 kilometers.
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