tier_1 conversion
Convert light year to kilometer
Convert light year to kilometer with a verified formula, worked example, conversion table, precision guidance, and reverse conversion.
light year to kilometer
light year to kilometer
Quick answer
1 light year = 9.46073047258E12 kilometer.
Formula
kilometer = light year × 9460730472580.000000000000000
Precision
The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.
How to convert light year to kilometer
- Enter a value in light year.
- Scale the source number by 9460730472580.000000000000000 to express the same quantity in kilometer.
- Round the displayed kilometer value only when needed.
About these units
light year is a unit used in length conversions. Length measures distance or linear extent. Its recorded symbol is ly. kilometer is a unit used in length conversions. Length measures distance or linear extent. Its recorded symbol is km.
Explore related conversions
light year to kilometer conversion table
| light year | kilometer |
|---|---|
| 0 light year | 0e-15 kilometer |
| 1 light year | 9.46073047258e+12 kilometer |
| 5 light year | 4.73036523629e+13 kilometer |
| 10 light year | 9.46073047258e+13 kilometer |
| 25 light year | 2.36518261814e+14 kilometer |
| 100 light year | 9.46073047258e+14 kilometer |
Frequently asked questions
How do I convert from light year to kilometer?
Scale the source number by 9460730472580.000000000000000 to express the same quantity in kilometer.
What formula does CalculatorHQ use for light year to kilometer?
kilometer = light year × 9460730472580.000000000000000
How should I round the result?
The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.
Can I convert kilometer back to light year?
Yes. Use the linked reverse conversion, whose formula is validated against this pair with round-trip tests.