The calculated distance (air line) between Shumen and Veliko Tŭrnovo is approximately 67 miles respectively 107 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Shumen and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles