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Astronomy (Distances) Converter

Convert astronomical distances — kilometers, astronomical units, light years and parsecs.

Result

9,460,730,472,581km

1 Light year = 9,460,730,472,581 Kilometer

1 ly in every unit
Kilometer9,460,730,472,581 km
Meter9.460730473e+15 m
Astronomical unit63,241.07708 au
Light year1 ly
Parsec0.3066013938 pc
Light second31,557,600 ls
Light minute525,960 lmin
Mile5,878,625,373,184 mi

Show the work

  1. Find the conversion factor from Light year to Kilometer

    1 ly = 9.460730473e+15 m · 1 km = 1,000 m

    factor = 9.460730473e+15 ÷ 1,000 = 9,460,730,472,581 km per ly

  2. Multiply by the factor: ly cancels, leaving km

    km = ly × (km per ly)

    1 ly × 9,460,730,472,581 km per ly = 9,460,730,472,581 km

How it works

1 ly = 9460730472581 km, so km = ly × 9460730472581

Light year to Kilometer table

Light yearKilometer
1 ly9,460,730,472,581 km
2 ly18,921,460,945,162 km
5 ly47,303,652,362,904 km
10 ly94,607,304,725,808 km
20 ly189,214,609,451,616 km
50 ly473,036,523,629,040 km
100 ly946,073,047,258,080 km
1,000 ly9.460730473e+15 km

Questions

How do I convert light year to kilometer?
Multiply by 9460730472581. For example, 10 ly = 94,607,304,725,808 km.
Which units does the astronomy (distances) converter support?
Kilometer (km), Meter (m), Astronomical unit (au), Light year (ly), Parsec (pc), Light second (ls), Light minute (lmin), Mile (mi).

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