The calculated distance (air line) between Tanushimarumachi-toyoki and Chikushino-shi is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Chikushino-shi is certainly longer, as only the direct route (as the crow flies) between Tanushimarumachi-toyoki and Chikushino-shi has been calculated here.
Air line (approximately)
23 kilometers
12 nautical miles