Convert circular inch to square foot (US survey)
Please provide values below to convert circular inch [circ in] to square foot (US survey) [ft^2 (US)], or Convert square foot (US survey) to circular inch.
How to Convert Circular Inch to Square Foot (Us Survey)
1 circ in = 0.00545413209561833 ft^2 (US)
Example: convert 15 circ in to ft^2 (US):
15 circ in = 15 × 0.00545413209561833 ft^2 (US) = 0.0818119814342749 ft^2 (US)
Circular Inch to Square Foot (Us Survey) Conversion Table
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Circular Inch
A circular inch is a unit of area measurement representing the area of a circle with a diameter of one inch.
History/Origin
The circular inch originated as a specialized measurement in fields requiring precise circular area calculations, but it is not widely used in standard measurement systems and has limited historical adoption.
Current Use
Today, the circular inch is primarily used in niche applications such as engineering and manufacturing where circular area measurements are relevant, but it remains a rarely used unit outside specialized contexts.
Square Foot (Us Survey)
A square foot (US survey) is a unit of area equal to the area of a square with sides measuring one foot, primarily used in land measurement and real estate in the United States.
History/Origin
The square foot originated from the foot as a unit of length, which has been used since ancient times. Its application as an area measurement became standardized in the United States for land and property measurements in the 19th and 20th centuries.
Current Use
Today, the square foot (US survey) is widely used in real estate, construction, and land surveying within the United States to measure property sizes, building areas, and land plots.