The calculated distance (air line) between Hamamatsu and Higashimurayama is approximately 122 miles respectively 196 kilometers.
By car or train, the actual journey to Higashimurayama is certainly longer, as only the direct route (as the crow flies) between Hamamatsu and Higashimurayama has been calculated here.
Air line (approximately)
196 kilometers
106 nautical miles