US Standard Area
These are the most common measurements:
- Square Inch
- Square Foot
- Square Yard
- Acre
- Square Mile
Small surfaces are usually measured in square inches, rooms and buildings in square feet, carpet in square yards, property in acres, and territory in square miles.
Square Inch
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Area is length by length, so a square inch is a square that is 1 inch on each side.
The Unit is inch × inch, which can be written many ways, such as:
- in2
- inch2
- sq in
- sq inch
- square inch
- etc ...
Square Foot
A square foot is a square that is 1 foot on each side.
Here Ariel the Dog sits next to a square foot made with tape measures.
The Unit is foot × foot, which can be written many ways, such as
- ft2
- foot2
- sq ft
- sq foot
- sq feet
Thinking of houses, the area of a typical ...
... bedroom is 100 square feet
... garage is 400 square feet
... house is 2000 square feet
Square Yard
A square yard is a square that is 1 yard on each side. It is equal to 9 square feet.
Acre
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One acre is equal to 43,560 square feet.
It is:
- a bt more than 200 ft by 200 ft
- exactly 198 ft by 220 ft
- exactly 66 ft by 660 ft
- about the area of a football field
Acres are commonly used to measure land.
Square Mile
A square mile is a square that is 1 mile on each side.
Square miles are commonly used to measure large areas of land.
More Examples
A square inch is about:
- 6½ square centimeters
An acre is:
- 4,840 square yards
- 43,560 square feet
- 4,046.8564224 square meters
- about 0.4 hectare (40% of the area of a hectare)
- a square with sides about 208.71 feet (or 69.57 yards)
- a bit less than a football field
- about 16 tennis courts
A square mile is:
- 640 acres