Convert from square mile [survey, U.S. statute] to caballeria [Spain/Peru]

Unit Definition (square mile [survey, U.S. statute])

Unit Definition (caballeria [Spain/Peru])
The caballeria [Spain/Peru] a traditional unit of land area in Spanish speaking countries. In Spain and Peru the caballeria is equal to 60 fanegas, which is roughly 40 hectares (100 acres).