Convert square mile [mi^2] to square chain [ch^2] Online | Free area Converter

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Square Mile [mi²]


A square mile (mi²) is a unit of area used primarily in the United States and the UK to measure large land areas. It represents a square that is one mile long on each side.

1 square mile = 2.59 square kilometers = 640 acres.

Square miles are commonly used to describe the size of cities, counties, and large geographic regions.




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.





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