The calculated distance (air line) between Ḩadīthah and Al Maḩmūdīyah is approximately 136 miles respectively 220 kilometers.
By car or train, the actual journey to Al Maḩmūdīyah is certainly longer, as only the direct route (as the crow flies) between Ḩadīthah and Al Maḩmūdīyah has been calculated here.
Air line (approximately)
220 kilometers
118 nautical miles