The calculated distance (air line) between Al Maḩallah al Kubrá and Ḩalwān is approximately 78 miles respectively 126 kilometers.
By car or train, the actual journey to Ḩalwān is certainly longer, as only the direct route (as the crow flies) between Al Maḩallah al Kubrá and Ḩalwān has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles