1 acre: how many perches, roods, square miles, square yards, square inches, cm2, m2, km2, hectares?

It was originally established as the area of land which could be ploughed with a pair of oxen in one day: 1 chain x 1 furlong (66x660 ft.)

Did you know?

1 The acre was spelled æcer in the Old English and was used with reference to an unattended, open land. It is a cognate of the Greek word agros, which means ‘field’ (from the Proto-Indo-European root agro- of the same meaning).

2. A cultural reference to the acre can be found in an English folk ballad, Scarborough Fair:

‘Tell him to buy me an acre of land,
Parsley, sage, rosemary, and thyme;
Between the salt water and the sea sand,

Then he shall be a true love of mine’