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