The calculated distance (air line) between Khārās and Bayt Lāhyā is approximately 33 miles respectively 52 kilometers.
By car or train, the actual journey to Bayt Lāhyā is certainly longer, as only the direct route (as the crow flies) between Khārās and Bayt Lāhyā has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles