Convert kilometer to astronomical unit
kilometer
Definition: A kilometer (symbol: km) is a unit of length in the International System of Units (SI). One kilometer is equivalent to 0.6214 miles.
History/origin: The prefix kilo- is a metric prefix indicating one thousand. One kilometer is therefore one thousand meters. The origin of the kilometer is linked to that of the meter, and its current definition as the distance traveled by light in 1/299 792 458 second. This definition is subject to change, but the relationship between the meter and the kilometer will remain constant.
Current use: It is currently the official unit of measurement for expressing distances between geographical places on land in most of the world. However, there still remain a number of countries that primarily use the mile instead of the kilometer including the United States and the United Kingdom (UK). Unlike the United States, the UK has adopted the metric system; while the metric system is widely used in government, commerce, and industry, remnants of the imperial system can still be seen in the UK's use of miles in its road systems.
astronomical unit
Definition: Astronomical unit is a measure of length or distance. For conversion purposes, its value is 149597870691 times the reference unit, meter.
kilometer to astronomical unit Conversion Table
| kilometer [km] | astronomical unit [AU, UA] |
|---|---|
| 0.01 kilometer | 0.000000 astronomical unit |
| 0.10 kilometer | 0.000000 astronomical unit |
| 1 kilometer | 0.000000 astronomical unit |
| 2 kilometer | 0.000000 astronomical unit |
| 3 kilometer | 0.000000 astronomical unit |
| 5 kilometer | 0.000000 astronomical unit |
| 10 kilometer | 0.000000 astronomical unit |
| 20 kilometer | 0.000000 astronomical unit |
| 50 kilometer | 0.000000 astronomical unit |
| 100 kilometer | 0.000001 astronomical unit |
| 1000 kilometer | 0.000007 astronomical unit |
How to Convert kilometer to astronomical unit
1 kilometer = 0.000000 astronomical unit
1 astronomical unit = 149597871 kilometer
Example
Convert 15 kilometer to astronomical unit:
15 kilometer = 15 × 0.000000 astronomical unit = 0.000000 astronomical unit
