The calculated distance (air line) between Morlanwelz-Mariemont and Genk is approximately 65 miles respectively 105 kilometers.
By car or train, the actual journey to Genk is certainly longer, as only the direct route (as the crow flies) between Morlanwelz-Mariemont and Genk has been calculated here.
Air line (approximately)
105 kilometers
57 nautical miles