Kilometres to Light-years Converter
Convert kilometres to light-years instantly. One kilometre equals 1.057e-13 light-years, so you can type any value in km and read the answer in ly.…
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Convert kilometres to light-years instantly. One kilometre equals 1.057e-13 light-years, so you can type any value in km and read the answer in ly. The page also shows a conversion table and the exact formula used.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
1 km = 1.057e-13 ly
With the default inputs (value in kilometres = 1 km), the results are: light-years 1.057e-13 ly.
Kilometres to light-years conversion table
Reference table based on the example values; it is not your calculation result.
| kilometres (km) | light-years (ly) |
|---|---|
| 1 | 1.057e-13 |
| 2 | 2.114e-13 |
| 5 | 5.285e-13 |
| 10 | 1.057e-12 |
| 25 | 2.6425e-12 |
| 50 | 5.285e-12 |
| 100 | 1.057e-11 |
| 500 | 5.285e-11 |
| 1,000 | 1.057e-10 |
Frequently asked questions
How many light-years are in one kilometre?
1 kilometre = 1.057e-13 light-years.
What is the formula to convert kilometres to light-years?
Multiply the value in kilometres by 1.057e-13.
How do I convert light-years back to kilometres?
1 light-year = 9,460,730,472,580.8 kilometres.
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