The calculated distance (air line) between Ashikaga and Ōmamachō-ōmama is approximately 12 miles respectively 19 kilometers.
By car or train, the actual journey to Ōmamachō-ōmama is certainly longer, as only the direct route (as the crow flies) between Ashikaga and Ōmamachō-ōmama has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles