The calculated distance (air line) between Geva Binyamin and Ḩalḩūl is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Ḩalḩūl is certainly longer, as only the direct route (as the crow flies) between Geva Binyamin and Ḩalḩūl has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles