The calculated distance (air line) between Castelnuovo del Garda and Circoiscrizione III is approximately 154 miles respectively 248 kilometers.
By car or train, the actual journey to Circoiscrizione III is certainly longer, as only the direct route (as the crow flies) between Castelnuovo del Garda and Circoiscrizione III has been calculated here.
Air line (approximately)
248 kilometers
134 nautical miles