The calculated distance (air line) between Pervomayskoye and Velyki Kopani is approximately 68 miles respectively 109 kilometers.
By car or train, the actual journey to Velyki Kopani is certainly longer, as only the direct route (as the crow flies) between Pervomayskoye and Velyki Kopani has been calculated here.
Air line (approximately)
109 kilometers
59 nautical miles