The calculated distance (air line) between Groot-Bijgaarden and Schaerbeek is approximately 6 miles respectively 9 kilometers.
By car or train, the actual journey to Schaerbeek is certainly longer, as only the direct route (as the crow flies) between Groot-Bijgaarden and Schaerbeek has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles