The calculated distance (air line) between Castelnovo ne'Monti and Vignola is approximately 30 miles respectively 49 kilometers.
By car or train, the actual journey to Vignola is certainly longer, as only the direct route (as the crow flies) between Castelnovo ne'Monti and Vignola has been calculated here.
Air line (approximately)
49 kilometers
26 nautical miles