Measurement calculator that can be used to convert Acre-inch, among others.
Convert Acre-inch:
Choose the right category from the selection list, in this case 'Volume'. 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 'Acre-inch [ac in]'. The value will then be converted into all units of measurement the calculator is familiar with.