The calculated distance (air line) between Lom and Veliko Tŭrnovo is approximately 130 miles respectively 210 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Lom and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
210 kilometers
113 nautical miles