The calculated distance (air line) between Dayr al Ghuşūn and Al Bīrah is approximately 32 miles respectively 51 kilometers.
By car or train, the actual journey to Al Bīrah is certainly longer, as only the direct route (as the crow flies) between Dayr al Ghuşūn and Al Bīrah has been calculated here.
Air line (approximately)
51 kilometers
27 nautical miles