The calculated distance (air line) between Mykolayiv and Novofedorivka is approximately 57 miles respectively 93 kilometers.
By car or train, the actual journey to Novofedorivka is certainly longer, as only the direct route (as the crow flies) between Mykolayiv and Novofedorivka has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles