Convert square hectometer [hm^2] to circular inch Online | Free area Converter

Square Hectometer [hm²]


A square hectometer (hm²) is a unit of area equal to a square with sides 1 hectometer (100 meters) long.

1 hm² = 10,000 m² = 1 hectare (ha).

It is used to measure large areas like fields or forests, similar to hectares.


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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