The calculated distance (air line) between Septemvri and Veliko Tŭrnovo is approximately 97 miles respectively 156 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Septemvri and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
156 kilometers
84 nautical miles