The calculated distance (air line) between Donetsk and Nyzhnia Krynka is approximately 18 miles respectively 28 kilometers.
By car or train, the actual journey to Nyzhnia Krynka is certainly longer, as only the direct route (as the crow flies) between Donetsk and Nyzhnia Krynka has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles