The calculated distance (air line) between Mezdra and Gorna Oryahovitsa is approximately 101 miles respectively 162 kilometers.
By car or train, the actual journey to Gorna Oryahovitsa is certainly longer, as only the direct route (as the crow flies) between Mezdra and Gorna Oryahovitsa has been calculated here.
Air line (approximately)
162 kilometers
88 nautical miles