how many sq. ft per acre?
<answer> 43,560 <context> There are 43,560 square feet in a acre; this is 4,840 square yards. You can find a conversion calculator at http://www.unitconversion.org/area/acres-to-square-foots-conversion.html Originally, the size of an acre was approximately the amount of land an ox could plow in a day. Now, I don’t know about you, but that approximation means virtually nothing to me.