The calculated distance (air line) between As Sālimīyah and Al Fāw is approximately 50 miles respectively 81 kilometers.
By car or train, the actual journey to Al Fāw is certainly longer, as only the direct route (as the crow flies) between As Sālimīyah and Al Fāw has been calculated here.
Air line (approximately)
81 kilometers
44 nautical miles