Convert » Unit Converter » Length » Lightyear → Kilometer

Lightyear → Kilometer (ly → km)

ly to km direct conversion page with calculator, reverse conversion and comparison table.

1 ly = 9460730472580.8 km
1 Lightyear (ly) = 9460730472580.8 Kilometer (km).


swap converter

If you want to reverse convert, use Kilometer → Lightyear. 1 km = 1.0570008340246E-13 ly. You can also explore the full Length converter page for more cross conversions.

Conversion formula

Lightyear to Kilometer formula: value in km = value in ly × 9460730472580.8.

Kilometer to Lightyear formula: value in ly = value in km × 1.0570008340246E-13.

How to convert Lightyear to Kilometer

To convert Lightyear to Kilometer, multiply the value in ly by 9460730472580.8. This gives the result in km.

For example, 1 ly = 9460730472580.8 km and 10 ly = 94607304725808 km.

What is Lightyear?

Lightyear (ly): The distance light travels in vacuum during one Julian year. Despite its name, it measures distance rather than time and is used between stars. 1 ly = 9460730472580800 m.

What is Kilometer?

Kilometer (km): A thousand metres. It is used for road distances, journeys between cities and walking routes, avoiding very large numbers in centimetres. 1 km = 1000 m = 100000 cm.

FAQ

How many kilometer are in 1 lightyear?

There are 9460730472580.8 km in 1 ly.

Why can conversion results differ slightly?

Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.

How do I convert lightyear to kilometer?

Multiply the value in ly by 9460730472580.8 to get the value in km.

Lightyear → other Length units

  • 1 lightyear = 9.4607304725808E+15 meter
  • 1 lightyear = 9460730472580.8 kilometer
  • 1 lightyear = 9.4607304725808E+16 decimeter
  • 1 lightyear = 9.4607304725808E+17 centimeter
  • 1 lightyear = 9.4607304725808E+18 millimeter
  • 1 lightyear = 9.4607304725808E+21 micrometer
  • 1 lightyear = 9.4607304725808E+24 nanometer
  • 1 lightyear = 9.4607304725808E+27 picometer
  • 1 lightyear = 5108385784330.9 nautical mile
  • 1 lightyear = 5878625373183.6 mile
  • 1 lightyear = 5.1731903284016E+15 fathom
  • 1 lightyear = 1.0346380656803E+16 yard
  • 1 lightyear = 3.1039141970409E+16 feet
  • 1 lightyear = 3.7246970364491E+17 inch
  • 1 lightyear = 9.3117425911228E+16 hand
  • 1 lightyear → astronomical unit = 63241.077084266 astronomical unit
  • 1 lightyear → parsec = 0.30660139378555 parsec

Lightyear → Kilometer Table

The table below shows common values from Lightyear to Kilometer and the reverse direction for quick reference.

lykmRounded
1 ly9460730472580.8 km9460730472580.8008
2 ly18921460945162 km18921460945161.6016
3 ly28382191417742 km28382191417742.3984
4 ly37842921890323 km37842921890323.2031
5 ly47303652362904 km47303652362904.0000
10 ly94607304725808 km94607304725808.0000
12 ly1.1352876567097E+14 km113528765670969.5938
15 ly1.4191095708871E+14 km141910957088712.0000
20 ly1.8921460945162E+14 km189214609451616.0000
25 ly2.3651826181452E+14 km236518261814520.0000
30 ly2.8382191417742E+14 km283821914177424.0000
40 ly3.7842921890323E+14 km378429218903232.0000
50 ly4.7303652362904E+14 km473036523629040.0000
75 ly7.0955478544356E+14 km709554785443559.8750
100 ly9.4607304725808E+14 km946073047258080.0000
200 ly1.8921460945162E+15 km1892146094516160.0000
250 ly2.3651826181452E+15 km2365182618145200.0000
500 ly4.7303652362904E+15 km4730365236290400.0000
750 ly7.0955478544356E+15 km7095547854435600.0000
1000 ly9.4607304725808E+15 km9460730472580800.0000
2500 ly2.3651826181452E+16 km23651826181452000.0000
5000 ly4.7303652362904E+16 km47303652362904000.0000
10000 ly9.4607304725808E+16 km94607304725808000.0000

Kilometer → Lightyear Table

kmlyRounded
1 km1.0570008340246E-13 ly0.0000
2 km2.1140016680492E-13 ly0.0000
3 km3.1710025020738E-13 ly0.0000
4 km4.2280033360985E-13 ly0.0000
5 km5.2850041701231E-13 ly0.0000
10 km1.0570008340246E-12 ly0.0000
12 km1.2684010008295E-12 ly0.0000
15 km1.5855012510369E-12 ly0.0000
20 km2.1140016680492E-12 ly0.0000
25 km2.6425020850615E-12 ly0.0000
30 km3.1710025020738E-12 ly0.0000
40 km4.2280033360985E-12 ly0.0000
50 km5.2850041701231E-12 ly0.0000
75 km7.9275062551846E-12 ly0.0000
100 km1.0570008340246E-11 ly0.0000
200 km2.1140016680492E-11 ly0.0000
250 km2.6425020850615E-11 ly0.0000
500 km5.2850041701231E-11 ly0.0000
750 km7.9275062551846E-11 ly0.0000
1000 km1.0570008340246E-10 ly0.0000
2500 km2.6425020850615E-10 ly0.0000
5000 km5.2850041701231E-10 ly0.0000
10000 km1.0570008340246E-9 ly0.0000

Kilometer → Lightyear

The reverse value is 1 km = 1.0570008340246E-13 ly.