Square foot -> Square mile (US)
Measurement calculator that can be used to convert Square foot to Square mile (US), among others: 1 Square foot [ft²] = 0.000 000 035 869 920 803 467 Square mile (US) [sqmi]
Convert Square foot to Square mile (US):Choose the right category from the selection list, in this case 'Area'. Next enter the value you want to convert. From the selection list, choose the unit that corresponds to the value you want to convert, in this case 'Square foot [ft²]'. Finally choose the unit you want the value to be converted to, in this case 'Square mile (US) [sqmi]'.