The calculated distance (air line) between Gresovskiy and Yevpatoriya is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Yevpatoriya is certainly longer, as only the direct route (as the crow flies) between Gresovskiy and Yevpatoriya has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles