The calculated distance (air line) between Niigata and Yoshida-kasugachō is approximately 16 miles respectively 25 kilometers.
By car or train, the actual journey to Yoshida-kasugachō is certainly longer, as only the direct route (as the crow flies) between Niigata and Yoshida-kasugachō has been calculated here.
Air line (approximately)
25 kilometers
14 nautical miles