The calculated distance (air line) between Chapelle-lez-Herlaimont and Etterbeek is approximately 25 miles respectively 41 kilometers.
By car or train, the actual journey to Etterbeek is certainly longer, as only the direct route (as the crow flies) between Chapelle-lez-Herlaimont and Etterbeek has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles