How many square fathom in 1 square astronomical unit? The answer is 6.69139495775E+21. We assume you are converting between square fathom and square astronomical unit. You can view more details on each measurement unit: square fathom or square astronomical unit The SI derived unit for area is the square meter. 1 square meter is equal to 0.29899631720256 square fathom, 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 square fathoms and square astronomical units. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from square astronomical unit to square fathom, or enter any two units below:
A square fathom is defined as the area of a square with sides one fathom in length.
The definition of a fathom is as follows:
unit of length equal to six feet used to measure depth of water
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 defined to be exactly equal to 149,597,870,700 metres. Historically, the astronomical unit was conceived as the average Earth-Sun distance (the average of Earth's aphelion and perihelion), before its modern redefinition.
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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