Convert square chain [ch^2] to circular mil Online | Free area Converter

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Square Chain [ch²]


A square chain (ch²) is a unit of area used in land surveying, especially in the US and UK. It represents the area of a square with sides one chain long.



  • 1 chain = 66 feet (20.1168 meters)



  • 1 square chain = 66 ft × 66 ft = 4,356 square feet ≈ 404.69 m²



  • 10 square chains = 1 acre



Square chains are used to measure land parcels and agricultural fields.




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.




Popular Area Unit Conversions

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🔗 Square-millimeter-mm-2-to-square-kilometer-km-2
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🔗 Square-millimeter-mm-2-to-square-chain-ch-2
🔗 Cuerda-to-square-centimeter-cm-2
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🔗 Plaza-to-square-millimeter-mm-2
🔗 Plaza-to-square-nanometer-nm-2
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🔗 Plaza-to-varas-castellanas-cuad
🔗 Varas-castellanas-cuad-to-square-mile-mi-2
🔗 Varas-castellanas-cuad-to-square-foot-us-survey
🔗 Varas-castellanas-cuad-to-square-pole
🔗 Varas-conuqueras-cuad-to-square-meter-m-2
🔗 Varas-conuqueras-cuad-to-hectare-ha
🔗 Varas-conuqueras-cuad-to-township
🔗 Varas-conuqueras-cuad-to-homestead
🔗 Electron-cross-section-to-square-millimeter-mm-2
🔗 Electron-cross-section-to-square-dekameter-dam-2
🔗 Electron-cross-section-to-square-decimeter-dm-2
🔗 Electron-cross-section-to-acre-us-survey-ac
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🔗 Electron-cross-section-to-arpent
🔗 Electron-cross-section-to-varas-conuqueras-cuad

Convert square chain [ch^2] to Other Area Units

🔄 square chain [ch^2] to square meter [m^2]
🔄 square chain [ch^2] to square kilometer [km^2]
🔄 square chain [ch^2] to square centimeter [cm^2]
🔄 square chain [ch^2] to square millimeter [mm^2]
🔄 square chain [ch^2] to square micrometer [µm^2]
🔄 square chain [ch^2] to hectare [ha]
🔄 square chain [ch^2] to acre [ac]
🔄 square chain [ch^2] to square mile [mi^2]
🔄 square chain [ch^2] to square yard [yd^2]
🔄 square chain [ch^2] to square foot [ft^2]
🔄 square chain [ch^2] to square inch [in^2]
🔄 square chain [ch^2] to square hectometer [hm^2]
🔄 square chain [ch^2] to square dekameter [dam^2]
🔄 square chain [ch^2] to square decimeter [dm^2]
🔄 square chain [ch^2] to square nanometer [nm^2]
🔄 square chain [ch^2] to are [a]
🔄 square chain [ch^2] to barn [b]
🔄 square chain [ch^2] to square mile (US survey)
🔄 square chain [ch^2] to square foot (US survey)
🔄 square chain [ch^2] to circular inch
🔄 square chain [ch^2] to township
🔄 square chain [ch^2] to section
🔄 square chain [ch^2] to acre (US survey) [ac]
🔄 square chain [ch^2] to rood
🔄 square chain [ch^2] to square rod
🔄 square chain [ch^2] to square rod (US survey)
🔄 square chain [ch^2] to square perch
🔄 square chain [ch^2] to square pole
🔄 square chain [ch^2] to square mil [mil^2]
🔄 square chain [ch^2] to circular mil
🔄 square chain [ch^2] to homestead
🔄 square chain [ch^2] to sabin
🔄 square chain [ch^2] to arpent
🔄 square chain [ch^2] to cuerda
🔄 square chain [ch^2] to plaza
🔄 square chain [ch^2] to varas castellanas cuad
🔄 square chain [ch^2] to varas conuqueras cuad
🔄 square chain [ch^2] to Electron cross section
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