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Circular inch to square foot (US survey)

Values for calculation

$ \text{Value} $

Area converter

Area converter from circular inch to square foot (US survey)

$$ 1\ \mathrm{circ\ in}=\cfrac{{1}\cdot{\left(0.9144/36\right)^2\cdot\left(π\cdot 0.5^2\right)}}{\left(1200/3937\right)^2}\ \mathrm{ft^2\ (US\ survey)}=0.00545\ \mathrm{ft^2\ (US\ survey)} $$