# Convert Kilometer to Astronomical Unit

## How to use the converter

To convert km to AU enter the value in the field below and select the target unit, the value will be displayed below:

Value:
From:
To:
Decimal places:

=

## Conversion Tables

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)
Hand
Inch (in)
Line
Thousandth (mil)
Thou (thou)
Nautical
Nautical mile
Fathom

## How to perform key conversions involving length measurements

The formulas for conversion are represented below:

### Kilometers to Astronomical Units Formula

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

### Astronomical Units to Kilometers Formula

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

## Frequently asked questions involving length and distance

### 1.5 km to Astronomical Unit

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

### 100 Astronomical Units is equal to how many kilometers?

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