KM to Light Years Converter

Convert kilometers to light years with accurate formulas, examples and conversion tables.

Length conversion

Calculator

Results update instantly. Use Calculate to confirm the current conversion.

Decimals and negative values are supported.

Result

1.05700083e-13 ly

1 km ≈ 1.05700083e-13 ly

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Conversion table

Common kilometers to light years values, generated from the selected units.

kilometers (km)light years (ly)
1 kilometer1.05700083e-13 light years
5 kilometers5.28500417e-13 light years
10 kilometers1.05700083e-12 light years
20 kilometers2.11400167e-12 light years
50 kilometers5.28500417e-12 light years
100 kilometers1.05700083e-11 light years

Conversion Formula

Divide the value in kilometers by 9460730472580.8 to get light years.

Formulaly = km ÷ 9460730472580.8

Example

Convert 1 kilometer to light years:

1 ÷ 9460730472580.8= 1.05700083e-13 ly

Unit information

Concise reference information for the selected source and target units.

Kilometer (km)

Metric
1 km = 1,000 m
Definition
One kilometer equals exactly 1,000 meters.
Usage
Used for road distances, geography, travel, and outdoor sports.

Light year (ly)

Scientific
1 ly = 9.460730472581e15 m
Definition
A light year is the distance light travels in vacuum during one Julian year.
Usage
Used to describe distances between stars and other objects beyond the solar system.

Frequently asked questions

How many light years are in 1 kilometer?

1 kilometer equals 1.057000834025e-13 light years.

How do you convert kilometers to light years?

Divide the value in kilometers by 9460730472580.8 to get light years. The formula is ly = km ÷ 9460730472580.8.

What is 10 kilometers in light years?

10 kilometers is approximately 1.05700083e-12 light years.