The calculated distance (air line) between Cavriago and Castelnovo ne'Monti is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Castelnovo ne'Monti is certainly longer, as only the direct route (as the crow flies) between Cavriago and Castelnovo ne'Monti has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles