The calculated distance (air line) between Florence and Montelupo Fiorentino is approximately 12 miles respectively 20 kilometers.
By car or train, the actual journey to Montelupo Fiorentino is certainly longer, as only the direct route (as the crow flies) between Florence and Montelupo Fiorentino has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles