Convert from caballeria [Spain/Peru] to square inch

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).

Unit Definition (square inch)
The square inch is a traditional unit of area. 1 in² equals exactly 6.4516 cm² or 645.16 mm².