The calculated distance (air line) between Pirogovskiy and Dolgoprudnyy is approximately 9 miles respectively 15 kilometers.
By car or train, the actual journey to Dolgoprudnyy is certainly longer, as only the direct route (as the crow flies) between Pirogovskiy and Dolgoprudnyy has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles