The calculated distance (air line) between Timmendorfer Strand and Burg auf Fehmarn is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Burg auf Fehmarn is certainly longer, as only the direct route (as the crow flies) between Timmendorfer Strand and Burg auf Fehmarn has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles