The calculated distance (air line) between Bayt Ḩānūn and Al Bīrah is approximately 48 miles respectively 77 kilometers.
By car or train, the actual journey to Al Bīrah is certainly longer, as only the direct route (as the crow flies) between Bayt Ḩānūn and Al Bīrah has been calculated here.
Air line (approximately)
77 kilometers
41 nautical miles