Light years to Kilometers
light years to kilometers Conversion Table
| light years (ly) | kilometers (km) | |
|---|---|---|
| 0.01 ly | → | 94610000000.0 km |
| 0.1 ly | → | 946100000000.0001 km |
| 1.0 ly | → | 9461000000000.0 km |
| 2.0 ly | → | 18922000000000.0 km |
| 3.0 ly | → | 28383000000000.0 km |
| 5.0 ly | → | 47305000000000.0 km |
| 10.0 ly | → | 94610000000000.0 km |
| 20.0 ly | → | 189220000000000.0 km |
| 30.0 ly | → | 283830000000000.0 km |
| 50.0 ly | → | 473050000000000.0 km |
| 100.0 ly | → | 946100000000000.0 km |
| 1000.0 ly | → | 9461000000000000.0 km |
Example Conversion
To convert from light years to kilometers, multiply by 9461000000000.0.
For example: 22 light years = 22 × 9461000000000.0 = 208142000000000.0 kilometers
Unit History
About light years
A light-year, though not part of the SI system, is a common astronomical unit used to express vast distances in space. It came into broader usage after scientific measurement of the speed of light in the 19th century. Scientists and educators often use light-years to help illustrate the immense scales between celestial objects, offering a more tangible sense of distances in the universe.
About kilometers
The kilometer was established following the definition of the meter, representing exactly 1,000 meters. It quickly became a standard for measuring longer distances, such as those between cities or geographic landmarks. Most countries that use the metric system rely on kilometers to indicate road and travel distances.