The calculated distance (air line) between Minakuchichō-matoba and Hamamatsu is approximately 91 miles respectively 146 kilometers.
By car or train, the actual journey to Hamamatsu is certainly longer, as only the direct route (as the crow flies) between Minakuchichō-matoba and Hamamatsu has been calculated here.
Air line (approximately)
146 kilometers
79 nautical miles