The calculated distance (air line) between Aci Sant'Antonio and Reggio Calabria is approximately 46 miles respectively 73 kilometers.
By car or train, the actual journey to Reggio Calabria is certainly longer, as only the direct route (as the crow flies) between Aci Sant'Antonio and Reggio Calabria has been calculated here.
Air line (approximately)
73 kilometers
40 nautical miles