The calculated distance (air line) between Tanushimarumachi-toyoki and Yanagawa is approximately 21 miles respectively 33 kilometers.
By car or train, the actual journey to Yanagawa is certainly longer, as only the direct route (as the crow flies) between Tanushimarumachi-toyoki and Yanagawa has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles