The calculated distance (air line) between Kheri Sāmpla and Najafgarh is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Najafgarh is certainly longer, as only the direct route (as the crow flies) between Kheri Sāmpla and Najafgarh has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles