This online conversion tool converts area ( square or just circle and sphere surface area ) units from Metric to US to ( UK ) Imperial systems, and vise verse, deals with all measurement values and conversions for any of the following area and surface area units: acre ( ac ), are ( a ), barn ( b ), hectare ( ha ), homestead, rood ( ro ), square centimeter ( sq cm – cm2 – cm2 ), square foot – feet ( sq ft – ft2 – ft2 ), square inch ( sq in – in2 – in2 ), square kilometer ( km2 – km2 ), square meter ( m2 – m2 ), square mile ( sq mi – mi2 ), square millimeter ( mm2 – mm2 ), square rod ( sq rd – rd2 ), square yard ( sq yd – yd2 ), township ( twp ) plus surface areas of spheres ( balls, globes ); ∅ 1 millimeter diameter sphere surface, one centimeter diameter sphere’s surface, inch dia spheres surface, foot sphere diameter surface, of 1 yard sphere diameter and 1 meter diam. spheres’ surface areas. Round circle flat surfaces for: 1 mm, 1 cm, 1 in, 1 ft, 1 yd, 1 m, 1 km and 1 mi circles.
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