To convert km to AU enter the value in the field below and select the target unit, the value will be displayed below:
| Metric | |
|---|---|
| Kilometer (km) | |
| Meter (m) | |
| Decimeter (dm) | |
| Centimeter (cm) | |
| Millimeter (mm) | |
| Micrometer (µm) | |
| Nanometer (nm) | |
| Angstrom (Å) | |
| Astronomical | |
|---|---|
| Parsec (pc) | |
| Light-year | |
| Astronomical unit (AU) | |
| Light-minute | |
| Light-second | |
| British/American | |
|---|---|
| League | |
| Mile (mi) | |
| Furlong | Chain |
| Rod (rd) | |
| Yard (yd) | |
| Foot (ft) | |
| Link | |
| Hand | |
| Inch (in) | |
| Line | |
| Thousandth (mil) | |
| Thou (thou) | |
| Nautical | |
|---|---|
| Nautical mile | |
| Fathom | |
The formulas for conversion are represented below:
ua = km x 6,684589x10-9
Example: 10 kilometers in Astronomical Units:
ua = km x 6,684589x10-9
ua = 10 x 6,684589x10-9
ua = 6,684589x10-8
km = ua / 6,684589x10-9
Example: 10 Astronomical Units in kilometers:
km = ua / 6,684589x10-9
km = 10 / 6,684589x10-9
km = 1.495.978.286,78
Considering that 1 kilometer is equivalent to 1000 Astronomical Units, you can use a rule of three to obtain that 1.5 km equals 1500 Astronomical Units.
1 km - 6,684589x10-9ua
1,5 km - x
Apply the rule of three and get:
x km = 1,5 x 6,684589x10-8 km ua
x = 1,002688350x10-8 ua
If every 6.684589x10-9 AU we have 1 kilometer, just divide the amount of Astronomical Units (100) by 6.684589x10-9, so you will get that 100 AU equals 14,959,782,867.81 km. Observe the calculation below:
km = ua / 6,684589x10-9
Km = 100 / 6,684589x10-9
km = 14.959.782.867,81