The calculated distance (air line) between Armyansk and Krasnogvardeyskoye is approximately 51 miles respectively 82 kilometers.
By car or train, the actual journey to Krasnogvardeyskoye is certainly longer, as only the direct route (as the crow flies) between Armyansk and Krasnogvardeyskoye has been calculated here.
Air line (approximately)
82 kilometers
44 nautical miles