›› Convert light year to kilometre


›› More information from the unit converter

How many light-year in 1 kilometer? The answer is 1.0570008340246E-13.
We assume you are converting between light year and kilometre.
You can view more details on each measurement unit:
light-year or kilometer
The SI base unit for length is the metre.
1 metre is equal to 1.0570008340246E-16 light-year, or 0.001 kilometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light years and kilometres.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of light-year to kilometer

1 light-year to kilometer = 9460730472580.8 kilometer

2 light-year to kilometer = 18921460945162 kilometer

3 light-year to kilometer = 28382191417742 kilometer

4 light-year to kilometer = 37842921890323 kilometer

5 light-year to kilometer = 47303652362904 kilometer

6 light-year to kilometer = 56764382835485 kilometer

7 light-year to kilometer = 66225113308066 kilometer

8 light-year to kilometer = 75685843780646 kilometer

9 light-year to kilometer = 85146574253227 kilometer

10 light-year to kilometer = 94607304725808 kilometer

›› Want other units?

You can do the reverse unit conversion from kilometer to light-year, or enter any two units below:

Enter two units to convert


›› Common length conversions

light-year to hubble
light-year to pertica
light-year to vershok
light-year to cuerda
light-year to arpent
light-year to picometer
light-year to cape foot
light-year to mil
light-year to bicron
light-year to hectometer

›› Definition: Light-year

A light year, abbreviated ly, is the distance light travels in one year: roughly 9.46 × 1012 kilometres (9.46 petametres, or about 5.88 × 1012 (nearly six trillion) miles). More specifically, a light year is defined as the distance that a photon would travel, in free space and infinitely far away from any gravitational or magnetic fields, in one Julian year (365.25 days of 86400 seconds each).

›› Definition: Kilometer

A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). It is approximately equal to 0.621 miles, 1094 yards or 3281 feet.

›› Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!