Convert circular inch to square inch
Please provide values below to convert circular inch [circ in] to square inch [in^2], or Convert square inch to circular inch.
How to Convert Circular Inch to Square Inch
1 circ in = 0.785398163246327 in^2
Example: convert 15 circ in to in^2:
15 circ in = 15 × 0.785398163246327 in^2 = 11.7809724486949 in^2
Circular Inch to Square Inch Conversion Table
| circular inch | square inch |
|---|
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 Inch
A square inch is a unit of area measurement equal to the area of a square with sides of one inch.
History/Origin
The square inch has been used historically in the imperial and US customary systems for measuring small areas, especially in engineering, manufacturing, and real estate, dating back to the adoption of the inch as a standard unit of length.
Current Use
Today, the square inch is still used in various fields such as printing, screen sizes, and material measurements, although the square meter is more common internationally. It remains a standard unit within the 'Area' converter in measurement tools and applications.