Editing Acre (section)

==Equivalence to other units of area==
[[File:Acre superimposed over football fields.svg|frame|The area of one acre (red) superposed on an [[American football]] field (green) and [[association football]]/soccer pitch (blue)]]
1 international acre is equal to the following metric units:
* 0.40468564224 hectare (A square with 100&nbsp;m sides has an area of 1 hectare.)
* 4,046.8564224 square metres (or a square with approximately 63.61&nbsp;m sides)

1 United States survey acre is equal to:
* 0.404687261 [[hectare]]
* 4,046.87261 square metres (1 square kilometre is equal to 247.105 acres)

1 acre (both variants) is equal to the following customary units:
* 66 feet × 660 feet (43,560 square feet)
* 10 square [[Chain (unit)|chains]] (1 chain = 66 feet = 22 yards = 4 rods = 100 [[link (unit)|links]])
* 1 acre is approximately 208.71 feet × 208.71 feet (a square)
* 4,840 square yards
* 43,560 square feet
* 160 [[Perch (unit)|perches]]. A perch is equal to a square [[Rod (length)|rod]] (1 square rod is 0.00625 acre)
* 4 [[Rood (measurement)|roods]]
* A furlong by a chain (furlong 220 yards, chain 22 yards)
* 40 rods by 4 rods, 160 rods<sup>2</sup> (historically fencing was often sold in 40 rod lengths<ref>{{Cite journal|date=1919|title=ed. 842|journal=Farmers' Bulletin|publisher=U.S. Government Printing Office|page=24}}</ref>)
* {{frac|1|640}} (0.0015625) square mile (1 square mile is equal to 640 acres)

Perhaps the easiest way for US residents to envision an acre is as a rectangle measuring 88 yards by 55 yards ({{frac|1|10}} of 880 yards by {{frac|1|16}} of 880 yards), about {{frac|9|10}} the size of a standard [[American football field]]. To be more exact, one acre is 90.75% of a 100-yd-long by 53.33-yd-wide American football field (without the [[end zone]]). The full field, including the end zones, covers about {{convert|1.32|acres|2|abbr=on}}. For residents of other countries, the acre might be envisioned as rather more than half of a {{convert|1.76|acres|2|abbr=on}} [[football pitch]].