The calculated distance (air line) between Kakogawachō-honmachi and Sandachō is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Sandachō is certainly longer, as only the direct route (as the crow flies) between Kakogawachō-honmachi and Sandachō has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles