The calculated distance (air line) between Bilohirsk and Nizhnegorskiy is approximately 28 miles respectively 45 kilometers.
By car or train, the actual journey to Nizhnegorskiy is certainly longer, as only the direct route (as the crow flies) between Bilohirsk and Nizhnegorskiy has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles