The calculated distance (air line) between Tirhassaline and Beni Mellal is approximately 51 miles respectively 82 kilometers.
By car or train, the actual journey to Beni Mellal is certainly longer, as only the direct route (as the crow flies) between Tirhassaline and Beni Mellal has been calculated here.
Air line (approximately)
82 kilometers
44 nautical miles