The calculated distance (air line) between Shirahamachō-usazakiminami and Hamamatsu is approximately 171 miles respectively 276 kilometers.
By car or train, the actual journey to Hamamatsu is certainly longer, as only the direct route (as the crow flies) between Shirahamachō-usazakiminami and Hamamatsu has been calculated here.
Air line (approximately)
276 kilometers
149 nautical miles