The calculated distance (air line) between Kotsiubynske and Knyazhichi is approximately 20 miles respectively 32 kilometers.
By car or train, the actual journey to Knyazhichi is certainly longer, as only the direct route (as the crow flies) between Kotsiubynske and Knyazhichi has been calculated here.
Air line (approximately)
32 kilometers
17 nautical miles