The calculated distance (air line) between Tanushimarumachi-toyoki and Hiroshima is approximately 125 miles respectively 201 kilometers.
By car or train, the actual journey to Hiroshima is certainly longer, as only the direct route (as the crow flies) between Tanushimarumachi-toyoki and Hiroshima has been calculated here.
Air line (approximately)
201 kilometers
108 nautical miles