The calculated distance (air line) between Bad Salzuflen and Bad Oeynhausen is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Bad Oeynhausen is certainly longer, as only the direct route (as the crow flies) between Bad Salzuflen and Bad Oeynhausen has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles