The calculated distance (air line) between Merelbeke and Woluwe-Saint-Lambert is approximately 32 miles respectively 51 kilometers.
By car or train, the actual journey to Woluwe-Saint-Lambert is certainly longer, as only the direct route (as the crow flies) between Merelbeke and Woluwe-Saint-Lambert has been calculated here.
Air line (approximately)
51 kilometers
27 nautical miles