The information provided herein is a reference provided to you at no charge. The information provided is based, in most cases, on the original. specifications. If your vehicle was originally charged with R12 refrigerant, for example, the oil type specified, 'mineral', will not apply.
A square foot (abbreviated as ft2) is a unit of area measurement equivalent to a square measuring 1 foot on every side. One square foot equals to approximately 0.09 square meters. A square foot is a unit of area used mostly in the imperial and U.S. customary measurement systems.
1 If you want to convert from square feet into square inches, multiply by 144. A square foot is 12 times longer and 12 times wider than a square inch, so it's 12 x 12 = 144 times bigger.  If you want to convert from cubic feet into cubic inches, multiply by 1728 (12 x 12 x 12).