The calculated distance (air line) between Sudak and Krasnogvardeyskoye is approximately 56 miles respectively 90 kilometers.
By car or train, the actual journey to Krasnogvardeyskoye is certainly longer, as only the direct route (as the crow flies) between Sudak and Krasnogvardeyskoye has been calculated here.
Air line (approximately)
90 kilometers
48 nautical miles