What is the length and width of an acre of land in meters?

An acre is any area that measures 4840 squareyards which is approximately 4046.86 square meters.

So a rectangle 1 meter wide and about 4046.86 meters long is one acre;

a rectangle 2 meters wide and about 2023.43 meters long is also one acre;

a rectangle 10 meters wide and about 404.69 meters long is also one acre.

An acre of 4840 sq yds is also calculable as a rectangle 22yds wide by 220yds long, which would be one chain wide and one furlong long - it is most likely that this was the rectangle that was originally used to define the acre.

In meters one chain by one furlong would be 20.1168 meters wide by 201.168 meters long.

(1 inch is defined to be exactly 2.54cm.)