## ››Convert are to square astronomical unit

 are square astronomical unit

How many are in 1 square astronomical unit? The answer is 2.2379523E+20.
We assume you are converting between are and square astronomical unit.
You can view more details on each measurement unit:
are or square astronomical unit
The SI derived unit for area is the square meter.
1 square meter is equal to 0.01 are, or 4.4683704831421E-23 square astronomical unit.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between ares and square astronomical units.
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You can do the reverse unit conversion from square astronomical unit to are, or enter any two units below:

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## ››Definition: Are

An are or (symbol a) is a unit of surface area, equivalent to 100 square metres. The are is most familiar through its derived unit, the hectare. Neither the are nor the hectare are SI units, although they are both accepted for use with SI units.

## ››Definition: Square astronomical unit

A square astronomical unit is defined as the area of a square with sides one astronomical unit in length.

The definition of a astronomical unit is as follows:

The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).

The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".

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