The calculated distance (air line) between Rosignano Solvay-Castiglioncello and Rimini is approximately 116 miles respectively 187 kilometers.
By car or train, the actual journey to Rimini is certainly longer, as only the direct route (as the crow flies) between Rosignano Solvay-Castiglioncello and Rimini has been calculated here.
Air line (approximately)
187 kilometers
101 nautical miles