The calculated distance (air line) between Reggiolo and Sant'Ilario d'Enza is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Sant'Ilario d'Enza is certainly longer, as only the direct route (as the crow flies) between Reggiolo and Sant'Ilario d'Enza has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles