Conversion from Kilometer (km) to Light year (ly) and vice versa

Updated on by Stefan Banse

Here you can convert the Unit of length Kilometer into the unit Light year and vice versa you can convert Light year into Kilometer. By clicking the "Swap units" icon, you will always obtain the desired conversion in the calculation result, i.e., km to ly or ly to km. With the following calculator you can also calculate any other Unit of length.

Ad

Info about "Kilometer"

The unit kilometer belongs to the metric system and is derived from the basic unit meter. Here, 1 kilometer can be converted into 1,000 meters or 1 meter is equivalent to 0.001 kilometers. The kilometer belongs to the International System of Units (SI).

In most parts of the world today, kilometers is the measuring unit used to express distances between geographical locations in the countryside. The United States and the United Kingdom are exceptions to this practice, where miles are used as a measuring unit.

Info about "Light year"

A light-year refers to the distance of light (in a vacuum) within one year. There are different definitions for a year (Gregorian year, tropical year, Julian year etc.), therefore the Julian year (365.25 days) was used as a definition for the light year. A light-year is converted to 9,460,730,472,580.8 km, around 9.5 trillion km. For example, the Milky Way is 100,000 light-years long because distance is difficult to measure in kilometers.

Basis for conversion Kilometer (km) to Light year (ly)

The abbreviation for the "Unit of length Kilometer" is km. The abbreviation for the "Unit of length Light year" is ly.

Formula for the conversion of Kilometer (km) to Light year (ly)

The calculation from Kilometer to Light year shall be made using the following conversion formula:

 Conversion formula Kilometer to Light year 

Determine the number of Light year from Kilometer

Kilometer × 1.0570008340246E-13


Formula for the conversion of Light year (ly) to Kilometer (km)

The calculation from Light year to Kilometer shall be made using the following conversion formula:

 Conversion formula Light year to Kilometer 

Determine the number of Kilometer from Light year

Light year × 9460730472580.8


Overview table: How many Kilometer are how many Light year?

Kilometer kmLight year ly
0.01 km => 0.000000000000001 ly
0.02 km => 0.000000000000002 ly
0.03 km => 0.000000000000003 ly
0.04 km => 0.000000000000004 ly
0.05 km => 0.000000000000005 ly
0.06 km => 0.000000000000006 ly
0.07 km => 0.000000000000007 ly
0.08 km => 0.000000000000008 ly
0.09 km => 0.000000000000009 ly
0.10 km => 0.000000000000010 ly
0.20 km => 0.000000000000021 ly
0.30 km => 0.000000000000031 ly
0.40 km => 0.000000000000042 ly
0.50 km => 0.000000000000052 ly
0.60 km => 0.000000000000063 ly
0.70 km => 0.000000000000074 ly
0.80 km => 0.000000000000084 ly
0.90 km => 0.000000000000095 ly
1 km => 0.000000000000105 ly
2 km => 0.000000000000211 ly
3 km => 0.000000000000317 ly
4 km => 0.000000000000422 ly
5 km => 0.000000000000528 ly
6 km => 0.000000000000634 ly
7 km => 0.000000000000739 ly
8 km => 0.000000000000845 ly
9 km => 0.000000000000951 ly
10 km => 0.000000000001057 ly
20 km => 0.000000000002114 ly
30 km => 0.000000000003171 ly
40 km => 0.000000000004228 ly
50 km => 0.000000000005285 ly
60 km => 0.000000000006342 ly
70 km => 0.000000000007399 ly
80 km => 0.000000000008456 ly
90 km => 0.000000000009513 ly
100 km => 0.000000000010570 ly
200 km => 0.000000000021140 ly
300 km => 0.000000000031710 ly
400 km => 0.000000000042280 ly
500 km => 0.000000000052850 ly
600 km => 0.000000000063420 ly
700 km => 0.000000000073990 ly
800 km => 0.000000000084560 ly
900 km => 0.000000000095130 ly
1 000 km => 0.000000000105700 ly

Overview table: How many Light year are how many Kilometer?

Light year lyKilometer km
0.01 ly => 94 607 304 725.80801 km
0.02 ly => 189 214 609 451.61602 km
0.03 ly => 283 821 914 177.42401 km
0.04 ly => 378 429 218 903.23205 km
0.05 ly => 473 036 523 629.04003 km
0.06 ly => 567 643 828 354.84802 km
0.07 ly => 662 251 133 080.65612 km
0.08 ly => 756 858 437 806.46411 km
0.09 ly => 851 465 742 532.27209 km
0.10 ly => 946 073 047 258.08007 km
0.20 ly => 1 892 146 094 516.16015 km
0.30 ly => 2 838 219 141 774.24023 km
0.40 ly => 3 784 292 189 032.32031 km
0.50 ly => 4 730 365 236 290.40039 km
0.60 ly => 5 676 438 283 548.48046 km
0.70 ly => 6 622 511 330 806.56054 km
0.80 ly => 7 568 584 378 064.64062 km
0.90 ly => 8 514 657 425 322.72070 km
1 ly => 9 460 730 472 580.80078 km
2 ly => 18 921 460 945 161.60156 km
3 ly => 28 382 191 417 742.40234 km
4 ly => 37 842 921 890 323.20312 km
5 ly => 47 303 652 362 904 km
6 ly => 56 764 382 835 484.80468 km
7 ly => 66 225 113 308 065.60937 km
8 ly => 75 685 843 780 646.40625 km
9 ly => 85 146 574 253 227.20312 km
10 ly => 94 607 304 725 808 km
20 ly => 189 214 609 451 616 km
30 ly => 283 821 914 177 424 km
40 ly => 378 429 218 903 232 km
50 ly => 473 036 523 629 040.06250 km
60 ly => 567 643 828 354 848 km
70 ly => 662 251 133 080 656 km
80 ly => 756 858 437 806 464 km
90 ly => 851 465 742 532 272.12500 km
100 ly => 946 073 047 258 080.12500 km
200 ly => 1 892 146 094 516 160.25000 km
300 ly => 2 838 219 141 774 240 km
400 ly => 3 784 292 189 032 320.50000 km
500 ly => 4 730 365 236 290 400 km
600 ly => 5 676 438 283 548 480 km
700 ly => 6 622 511 330 806 561 km
800 ly => 7 568 584 378 064 641 km
900 ly => 8 514 657 425 322 721 km
1 000 ly => 9 460 730 472 580 800 km

Source information

As source for the information in the "Units of length" category, we have used in particular:

Last update on November 22, 2020

The last changes in the "Units of length" category were implemented by Stefan Banse on November 22, 2020. The main changes were:

  • November 5, 2020: Publication of the Length converter
  • Editorial revision of all texts in this category