The calculated distance (air line) between Kallar Kahar and Daud Khel is approximately 66 miles respectively 106 kilometers.
By car or train, the actual journey to Daud Khel is certainly longer, as only the direct route (as the crow flies) between Kallar Kahar and Daud Khel has been calculated here.
Air line (approximately)
106 kilometers
57 nautical miles