The calculated distance (air line) between Mykolayiv and Kropyvnytskyy is approximately 107 miles respectively 172 kilometers.
By car or train, the actual journey to Kropyvnytskyy is certainly longer, as only the direct route (as the crow flies) between Mykolayiv and Kropyvnytskyy has been calculated here.
Air line (approximately)
172 kilometers
93 nautical miles