The calculated distance (air line) between Saint-Josse-ten-Noode and Turnhout is approximately 41 miles respectively 66 kilometers.
By car or train, the actual journey to Turnhout is certainly longer, as only the direct route (as the crow flies) between Saint-Josse-ten-Noode and Turnhout has been calculated here.
Air line (approximately)
66 kilometers
35 nautical miles