The calculated distance (air line) between Braunschweig and Rheda-Wiedenbrück is approximately 99 miles respectively 159 kilometers.
By car or train, the actual journey to Rheda-Wiedenbrück is certainly longer, as only the direct route (as the crow flies) between Braunschweig and Rheda-Wiedenbrück has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles