The calculated distance (air line) between Dulovo and Veliko Tŭrnovo is approximately 92 miles respectively 148 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Dulovo and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
148 kilometers
80 nautical miles