Convert square mile (US survey) to circular inch Online | Free area Converter

Square Mile (US Survey)

The square mile (US survey) is a unit of area used in the United States for land measurement based on the US survey foot. It represents a square with sides 1 mile long, where a mile is defined using the survey foot rather than the international foot.

1 US survey mile = 5,280 US survey feet

1 square mile (US survey) ≈ 2.589998 km² (slightly different from the international square mile of 2.59 km²)

This unit is mostly used in land surveying and mapping within the US.

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.