The calculated distance (air line) between Cerro de Pasco and San Pedro de Cajas is approximately 48 miles respectively 78 kilometers.
By car or train, the actual journey to San Pedro de Cajas is certainly longer, as only the direct route (as the crow flies) between Cerro de Pasco and San Pedro de Cajas has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles