<P> One acre equals 0.0015625 square miles , 4,840 square yards , 43,560 square feet or about 4,047 square metres ( 0.4047 hectares ) ( see below ) . While all modern variants of the acre contain 4,840 square yards , there are alternative definitions of a yard , so the exact size of an acre depends on which yard it is based . Originally , an acre was understood as a selion of land sized at forty perches ( 660 ft , or 1 furlong ) long and four perches ( 66 ft ) wide ; this may have also been understood as an approximation of the amount of land a yoke of oxen could plough in one day . A square enclosing one acre is approximately 69.57 yards , or 208 feet 9 inches ( 63.61 metres ) on a side . As a unit of measure , an acre has no prescribed shape ; any area of 43,560 square feet is an acre . </P>
<P> One acre equals 0.0015625 square miles , 4,840 square yards , 43,560 square feet or about 4,047 square metres ( 0.4047 hectares ) ( see below ) . While all modern variants of the acre contain 4,840 square yards , there are alternative definitions of a yard , so the exact size of an acre depends on which yard it is based . Originally , an acre was understood as a selion of land sized at forty perches ( 660 ft , or 1 furlong ) long and four perches ( 66 ft ) wide ; this may have also been understood as an approximation of the amount of land a yoke of oxen could plough in one day . A square enclosing one acre is approximately 69.57 yards , or 208 feet 9 inches ( 63.61 metres ) on a side . As a unit of measure , an acre has no prescribed shape ; any area of 43,560 square feet is an acre . </P>
what is the measurement of an acre in square feet
what is the measurement of an acre in square feet
43,560 square feet
43,560 square feet