The calculated distance (air line) between Zonhoven and Woluwe-Saint-Lambert is approximately 42 miles respectively 68 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 Zonhoven and Woluwe-Saint-Lambert has been calculated here.
Air line (approximately)
68 kilometers
37 nautical miles