Convert square perch to circular mil Online | Free area Converter

Square Perch

A square perch is a traditional unit of area, also known as a square rod or pole. It represents the area of a square with sides one perch (rod) long.

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  1 perch (rod) = 16.5 feet

  
  
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  1 square perch = 16.5 ft × 16.5 ft = 272.25 square feet ≈ 25.29 square meters

  
  
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  160 square perches = 1 acre

  
  

Square perches were commonly used in land surveying and property descriptions, especially in the UK and older US records.

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.