Convert square foot (US survey) to square mil [mil^2] Online | Free area Converter

Square Foot (US Survey)


The square foot (US survey) is a unit of area based on the US survey foot, which is slightly longer than the international foot. It is mainly used in land surveying and mapping in the United States.



  • 1 US survey foot = 1200⁄3937 meters (approximately 0.3048006096 m)



  • 1 square foot (US survey) ≈ 0.0929034116 m²



This unit helps maintain consistency in US land measurements, especially in legal and cadastral contexts.


Square Mil [mil²]


A square mil (mil²) is a very small unit of area used mainly in engineering and manufacturing, especially for measuring the cross-sectional area of wires and thin materials.



  • 1 mil = 1/1000 of an inch (0.001 inch)



  • 1 square mil = (0.001 inch)² = 0.000001 square inches (in²)



  • 1 square mil ≈ 6.4516 × 10⁻¹⁰ square meters (m²)



Square mils are useful for precise measurements in electronics and materials science.



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