The calculated distance (air line) between Mīrānpur Katra and Najafgarh is approximately 168 miles respectively 271 kilometers.
By car or train, the actual journey to Najafgarh is certainly longer, as only the direct route (as the crow flies) between Mīrānpur Katra and Najafgarh has been calculated here.
Air line (approximately)
271 kilometers
146 nautical miles