The calculated distance (air line) between Jettingen-Scheppach and Karlsruhe is approximately 102 miles respectively 164 kilometers.
By car or train, the actual journey to Karlsruhe is certainly longer, as only the direct route (as the crow flies) between Jettingen-Scheppach and Karlsruhe has been calculated here.
Air line (approximately)
164 kilometers
89 nautical miles