The calculated distance (air line) between Asentamiento Humano Nicolas de Pierola and Callao is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Callao is certainly longer, as only the direct route (as the crow flies) between Asentamiento Humano Nicolas de Pierola and Callao has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles