Convert square chain [ch^2] to acre (US survey) [ac] 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.




Acre (US Survey) [ac]


The acre (US survey) is a unit of area used mainly in the United States for land measurement, based on the US survey foot. It is slightly different from the international acre due to the foot definition.



  • 1 US survey acre = 43,560 US survey square feet



  • 1 US survey acre ≈ 4,046.87261 square meters



  • Slightly larger than the international acre by about 0.0005%.



It is commonly used in land surveying, real estate, and agriculture.




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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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