Convert square meter [m^2] to circular inch Online | Free area Converter

Square Meter [m²]


A square meter (m²) is the SI unit of area. It represents the area of a square with sides that are 1 meter long. Square meters are commonly used to measure spaces like rooms, land, and buildings. For example, a room that is 5 meters long and 4 meters wide has an area of 20 m² (5 × 4 = 20).


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.



  • Formula: Area = π × (radius)²



  • 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.



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