The calculated distance (air line) between Al Ḩayy and Al Miqdādīyah is approximately 140 miles respectively 226 kilometers.
By car or train, the actual journey to Al Miqdādīyah is certainly longer, as only the direct route (as the crow flies) between Al Ḩayy and Al Miqdādīyah has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles