Convert square pole to square mile (US survey) Online | Free area Converter

Square Pole


A square pole is another name for a square rod or square perch, a traditional unit of area used in land measurement.



  • 1 pole (rod) = 16.5 feet



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



  • 160 square poles = 1 acre



Square poles have historically been used in surveying and describing land parcels.



Square Mile (US Survey)


The square mile (US survey) is a unit of area used in the United States for land measurement based on the US survey foot. It represents a square with sides 1 mile long, where a mile is defined using the survey foot rather than the international foot.


1 US survey mile = 5,280 US survey feet

1 square mile (US survey) ≈ 2.589998 km² (slightly different from the international square mile of 2.59 km²)


This unit is mostly used in land surveying and mapping within the US.



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