The calculated distance (air line) between Lamporecchio and Campi Bisenzio is approximately 13 miles respectively 20 kilometers.
By car or train, the actual journey to Campi Bisenzio is certainly longer, as only the direct route (as the crow flies) between Lamporecchio and Campi Bisenzio has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles