The calculated distance (air line) between Khrustalnyi and Yenakiieve is approximately 34 miles respectively 55 kilometers.
By car or train, the actual journey to Yenakiieve is certainly longer, as only the direct route (as the crow flies) between Khrustalnyi and Yenakiieve has been calculated here.
Air line (approximately)
55 kilometers
30 nautical miles