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`AD = f( D )`

Enter a value for all fields

The **Astronomical Distance Conversion** calculator converts a measurement of length from one of vCalc's standard units to another unit of your choice.

**INSTRUCTIONS:** Choose your preferred distance unit (e.g. kilometers or astronomical units) and enter the following:

- (
**D**) This is the input distance

**Astronomical Distance (AD)**: The calculator returns the astronomical distance (**AD**) in light-years (ly). However, this can be automatically converted to other units via the pull-down menu .

Astronomical distance units are often used in astronomy calculations when more conventional units such as kilometers are too small for easy comprehension, and the conversion from common length units to astronomical units is a simple linear transform.

- kilometers
- miles
- light-seconds
- light-minutes
- astronomical units (ua)
- light-hours
- light-days
- light-years
- kilolight-years
- parsecs
- megaparsecs

- Convert Kilometers to Light-Seconds
- Convert Kilometers to Light-Minutes
- Convert Kilometers to Astronomical Units
- Convert Kilometers to Light-Hours
- Convert Kilometers to Light-Days
- Convert Kilometers to Light-Years
- Convert Kilometers to Parsecs
- Convert Kilometers to kilo-Light-Year
- Convert Kilograms to Mega-Parsecs