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