The calculated distance (air line) between Krasnogvardeyskoye and Gresovskiy is approximately 37 miles respectively 59 kilometers.
By car or train, the actual journey to Gresovskiy is certainly longer, as only the direct route (as the crow flies) between Krasnogvardeyskoye and Gresovskiy has been calculated here.
Air line (approximately)
59 kilometers
32 nautical miles