The calculated distance (air line) between Kamar Mushani and Daud Khel is approximately 12 miles respectively 20 kilometers.
By car or train, the actual journey to Daud Khel is certainly longer, as only the direct route (as the crow flies) between Kamar Mushani and Daud Khel has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles