The calculated distance (air line) between Bochum-Hordel and Alblasserdam is approximately 111 miles respectively 178 kilometers.
By car or train, the actual journey to Alblasserdam is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Alblasserdam has been calculated here.
Air line (approximately)
178 kilometers
96 nautical miles