The calculated distance (air line) between Waldems and Schwalbach am Taunus is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Schwalbach am Taunus is certainly longer, as only the direct route (as the crow flies) between Waldems and Schwalbach am Taunus has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles