The calculated distance (air line) between Valeggio sul Mincio and Sirmione is approximately 12 miles respectively 19 kilometers.
By car or train, the actual journey to Sirmione is certainly longer, as only the direct route (as the crow flies) between Valeggio sul Mincio and Sirmione has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles