The calculated distance (air line) between Nahiyat Ghammas and Al Kūt is approximately 88 miles respectively 142 kilometers.
By car or train, the actual journey to Al Kūt is certainly longer, as only the direct route (as the crow flies) between Nahiyat Ghammas and Al Kūt has been calculated here.
Air line (approximately)
142 kilometers
76 nautical miles