The calculated distance (air line) between Platnirovskaya and Novokorsunskaya is approximately 21 miles respectively 33 kilometers.
By car or train, the actual journey to Novokorsunskaya is certainly longer, as only the direct route (as the crow flies) between Platnirovskaya and Novokorsunskaya has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles