The calculated distance (air line) between Krasnogvardeyskoye and Mirnoye is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Mirnoye is certainly longer, as only the direct route (as the crow flies) between Krasnogvardeyskoye and Mirnoye has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles