The calculated distance (air line) between Kapelle-op-den-Bos and Jette is approximately 10 miles respectively 15 kilometers.
By car or train, the actual journey to Jette is certainly longer, as only the direct route (as the crow flies) between Kapelle-op-den-Bos and Jette has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles