The calculated distance (air line) between Mariupol and Novoderevyankovskaya is approximately 78 miles respectively 126 kilometers.
By car or train, the actual journey to Novoderevyankovskaya is certainly longer, as only the direct route (as the crow flies) between Mariupol and Novoderevyankovskaya has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles