The calculated distance (air line) between Kichijōji-honchō and Hachiōji is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Hachiōji is certainly longer, as only the direct route (as the crow flies) between Kichijōji-honchō and Hachiōji has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles