How big is an acre?

How big is an acre? How many feet up, and how many feet across?

• Answer:

  The answer lies in these facts provided by wikpedia The U.S. customary units definition of the acre in NIST Handbook 44 is 43,560.0 square feet. However, the U.S. has two definitions of foot (international foot and survey foot) and thus two definitions of acre: The international acre is 4,046.8564224 m². This is based on international foot of 0.3048 m. The U.S. survey acre is 4,046.87261 m². This is based on the U.S. survey foot of 1200⁄3937 m. [edit] Related linear measurements Two obsolete, but related, measurements are the acre's length and the acre's breadth. 1 acre's length = 1 furlong, 40 poles, or 220 yards 1 acre's breadth = 1 chain, 4 poles, or 22 yards Conversion An international acre may be converted to other units because it is equivalent to exactly: 4,046.8564224 m² (SI unit) 40.468564224 a, 0.40468564224 ha, 43,560 square feet, 4,840 square yards, 160 square rods, 4 rood, 1/640 square mile, a 10:1 rectangle of 1 furlong by 1 chain. 10 square chains. An acre is equivalent to approximately: a square of side 208.71 feet (63.61 metres). One square mile is 640 acres. A square parcel of land ¼ mile wide is 40 acres. A square parcel of land ½ mile on a side is 160 acres, the usual land tract under the Homestead Act in the United States. This results in common field lengths of ½ mile, with every rod in width equal to one acre. One acre is slightly less than 91 yards on an American Football field, with the full field, including the end zones, covering approximately 1.32 acres.