How big is an acre in the metric system?
One acre is equal to 4,046.86 square meters.
In other words, a square 63 meters by 63 meters will cover the area of an acre.
One acre makes up 0.405 hectares, or one hectare is made up of 2.471 acres.
How big is an acre in the imperial system?
One acre is equal to 43,560 square feet.
In other words, a square 209 feet by 209 feet will cover the area of an acre.
This video also helps with visualizing how big an acre is.
