The calculated distance (air line) between Bochum-Hordel and Zaandam is approximately 119 miles respectively 192 kilometers.
By car or train, the actual journey to Zaandam is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Zaandam has been calculated here.
Air line (approximately)
192 kilometers
103 nautical miles