Convert square rod (US survey) to square chain [ch^2] Online | Free area Converter

Square Rod (US Survey)

A square rod (US survey) is a unit of area based on the US survey foot and rod, used primarily in land surveying in the United States.

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  1 US survey rod = 16.5 US survey feet (exactly 16.5 feet)

  
  
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  1 square rod (US survey) = 16.5 ft × 16.5 ft = 272.25 square feet ≈ 25.2929 m²

  
  

The US survey square rod is slightly different in exact length than the international measurement due to the foot definition but is essentially used the same way for land measurement.

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.

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  1 chain = 66 feet (20.1168 meters)

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

  
  
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  10 square chains = 1 acre

  
  

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