The calculated distance (air line) between Oviedo and Corvera de Asturias is approximately 12 miles respectively 20 kilometers.
By car or train, the actual journey to Corvera de Asturias is certainly longer, as only the direct route (as the crow flies) between Oviedo and Corvera de Asturias has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles