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