To Convert: Into: Multiply By:
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square inches circular mils 1273239.5
square inches square centimeters 6.4516
square inches square chains (Gunter's) 1.5942251 X 10^-6
square inches square decimeters 0.064516
square inches square feet 0.0069444
square inches square feet (US survey) 0.0069444167
square inches square links (Gunter's) 0.01594225
square inches square meters 0.00064516
square inches square miles 2.4909767 X 10^-10
square inches square millimeters 645.16
square inches square mils 1.0 X 10^6
square inches square yards 7.716 X 10^-4