The calculated distance (air line) between East Jerusalem and Bayt Ḩānūn is approximately 44 miles respectively 72 kilometers.
By car or train, the actual journey to Bayt Ḩānūn is certainly longer, as only the direct route (as the crow flies) between East Jerusalem and Bayt Ḩānūn has been calculated here.
Air line (approximately)
72 kilometers
39 nautical miles