The calculated distance (air line) between Mechelen-aan-de-Maas and La Louvière is approximately 74 miles respectively 119 kilometers.
By car or train, the actual journey to La Louvière is certainly longer, as only the direct route (as the crow flies) between Mechelen-aan-de-Maas and La Louvière has been calculated here.
Air line (approximately)
119 kilometers
64 nautical miles