The calculated distance (air line) between Castelnovo ne'Monti and Castelnovo di Sotto is approximately 27 miles respectively 44 kilometers.
By car or train, the actual journey to Castelnovo di Sotto is certainly longer, as only the direct route (as the crow flies) between Castelnovo ne'Monti and Castelnovo di Sotto has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles