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Circular inch to hectare

Values for calculation

$ \text{Value} $

Area converter

Area converter from circular inch to hectare

$$ 1\ \mathrm{circ\ in}={{1}\cdot{\left(0.9144/36\right)^2\cdot\left(π\cdot 0.5^2\right)}}\cdot{10^{-4}}\ \mathrm{ha}=5.07E-8\ \mathrm{ha} $$