The calculated distance (air line) between Schwalbach am Taunus and Bielefeld is approximately 130 miles respectively 209 kilometers.
By car or train, the actual journey to Bielefeld is certainly longer, as only the direct route (as the crow flies) between Schwalbach am Taunus and Bielefeld has been calculated here.
Air line (approximately)
209 kilometers
113 nautical miles