Convert square rod (US survey) to circular mil Online | Free area Converter

Square Rod (US Survey)

A square rod (US survey) is a unit of area based on the US survey foot and rod, used primarily in land surveying in the United States.

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  1 US survey rod = 16.5 US survey feet (exactly 16.5 feet)

  
  
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  1 square rod (US survey) = 16.5 ft × 16.5 ft = 272.25 square feet ≈ 25.2929 m²

  
  

The US survey square rod is slightly different in exact length than the international measurement due to the foot definition but is essentially used the same way for land measurement.

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.

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

  
  
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  Area = (diameter in mils)² circular mils.

  
  
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  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.