The calculated distance (air line) between Khrustalnyi and Khartsyzk is approximately 37 miles respectively 60 kilometers.
By car or train, the actual journey to Khartsyzk is certainly longer, as only the direct route (as the crow flies) between Khrustalnyi and Khartsyzk has been calculated here.
Air line (approximately)
60 kilometers
32 nautical miles