The calculated distance (air line) between Uekimachi-mōno and Ōita is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Ōita is certainly longer, as only the direct route (as the crow flies) between Uekimachi-mōno and Ōita has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles