Convert square perch to square rod (US survey) Online | Free area Converter

Square Perch


A square perch is a traditional unit of area, also known as a square rod or pole. It represents the area of a square with sides one perch (rod) long.



  • 1 perch (rod) = 16.5 feet



  • 1 square perch = 16.5 ft × 16.5 ft = 272.25 square feet ≈ 25.29 square meters



  • 160 square perches = 1 acre



Square perches were commonly used in land surveying and property descriptions, especially in the UK and older US records.



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.



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



  • 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.




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