The calculated distance (air line) between Kolomenskoye and Kotel’niki is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Kotel’niki is certainly longer, as only the direct route (as the crow flies) between Kolomenskoye and Kotel’niki has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles