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