Convert circular inch to square foot [ft^2] Online | Free area Converter

Circular Inch

A circular inch is a unit of area used primarily in engineering and wire gauge measurements. It represents the area of a circle with a diameter of one inch.

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  Formula: Area = π × (radius)²

  
  
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  Since the radius is half an inch,
  
  Area = π × (0.5 in)² = π × 0.25 in² ≈ 0.7854 square inches (in²).

  
  

Circular inches are often used to specify cross-sectional areas of wires or pipes.

Square Foot [ft²]

A square foot (ft²) is a unit of area commonly used in the United States and other countries. It represents a square with sides 1 foot (12 inches) long.

1 square foot = 144 square inches = 0.0929 square meters.

Square feet are widely used to measure the area of rooms, houses, and small plots of land.