The calculated distance (air line) between Tubize and Woluwe-Saint-Lambert is approximately 15 miles respectively 23 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 Tubize and Woluwe-Saint-Lambert has been calculated here.
Air line (approximately)
23 kilometers
13 nautical miles