The calculated distance (air line) between Dayr al Balaḩ and Qalqīlyah is approximately 65 miles respectively 104 kilometers.
By car or train, the actual journey to Qalqīlyah is certainly longer, as only the direct route (as the crow flies) between Dayr al Balaḩ and Qalqīlyah has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles