Convert circular mil to hectare [ha] Online | Free area Converter

Circular Mil


A circular mil is a unit of area used mainly to measure the cross-sectional area of round wires and cables in electrical engineering.



  • Defined as the area of a circle with a diameter of 1 mil (1 mil = 0.001 inch).



  • Area = (diameter in mils)² circular mils.



  • 1 circular mil ≈ 7.854 × 10⁻¹⁰ square meters or 0.7854 square mils.



Circular mils simplify calculations for round wires since area scales with the square of the diameter.



Hectare [ha]


A hectare (ha) is a unit of area commonly used in land measurement. It equals 10,000 square meters or a square that is 100 meters on each side.

1 hectare = 10,000 m² = 0.01 square kilometers.

Hectares are often used to measure fields, farms, and large plots of land.




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