## ››Convert circular mil to square astronomical unit

 circular mil square astronomical unit

How many circular mil in 1 square astronomical unit? The answer is 4.4166553530768E+31.
We assume you are converting between circular mil and square astronomical unit.
You can view more details on each measurement unit:
circular mil or square astronomical unit
The SI derived unit for area is the square meter.
1 square meter is equal to 1973525241.39 circular mil, 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 circular mils and square astronomical units.
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You can do the reverse unit conversion from square astronomical unit to circular mil, or enter any two units below:

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## ››Definition: Circular mil

A circular mil is a unit of area, equal to the area of a circle with a diameter of one mil (one thousandth of an inch). It is a convenient unit for referring to the area of a wire with a circular cross section, because the area in circular mils can be calculated without reference to pi (π).

## ››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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