The calculated distance (air line) between Bochum-Hordel and Heerhugowaard is approximately 128 miles respectively 205 kilometers.
By car or train, the actual journey to Heerhugowaard is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Heerhugowaard has been calculated here.
Air line (approximately)
205 kilometers
111 nautical miles