The calculated distance (air line) between Kamojimachō-jōgejima and Nagoya is approximately 164 miles respectively 265 kilometers.
By car or train, the actual journey to Nagoya is certainly longer, as only the direct route (as the crow flies) between Kamojimachō-jōgejima and Nagoya has been calculated here.
Air line (approximately)
265 kilometers
143 nautical miles