The calculated distance (air line) between Rychnov nad Kněžnou and Teplice is approximately 113 miles respectively 182 kilometers.
By car or train, the actual journey to Teplice is certainly longer, as only the direct route (as the crow flies) between Rychnov nad Kněžnou and Teplice has been calculated here.
Air line (approximately)
182 kilometers
98 nautical miles