When we are talking about how many feet are in one acre1, of course, we mean square feet2, because acres and square feet are units of area and a foot is a length unit. Everybody can imagine an area of a square foot, but it is not so easy to visualize an acre. A good example comes from sport. As a rule, a common football field is about one acre.
But how many feet does one acre consists of? The answer is following:
One acre has 43,560 square feet
The table below will help you if you need to convert square feet and acres into some other units of area.
One square foot
Acres are usually used in the US customary system and in the imperial system for measuring land in forestry and agriculture. Square feet are widely spread in architecture, real estate, etc.
You can come across other types of acres, which are used in various countries: Roman acre (1260 m2), Irish acre (7843 yd2), Cheshire acre (10240 yd2), etc. But they are not as popular as international acres.
The acre is a US customary and imperial unit of area, which is also used in many other systems. The international acre is the most common variant, and it is equal to approximately 4,046.85 square meters, or 0.404 hectare.
The square foot (abbr. sq ft or ft2) is a US customary and imperial unit of area, which is used in the USA, Canada, United Kingdom, and other countries. It is a square area with sides of one foot (12 inches, or about 0,304 meters).