The calculated distance (air line) between Yanagawamachi-saiwaichō and Kawaguchi is approximately 150 miles respectively 241 kilometers.
By car or train, the actual journey to Kawaguchi is certainly longer, as only the direct route (as the crow flies) between Yanagawamachi-saiwaichō and Kawaguchi has been calculated here.
Air line (approximately)
241 kilometers
130 nautical miles