The calculated distance (air line) between Santa Marta de Ortigueira and Castro de Rei is approximately 40 miles respectively 64 kilometers.
By car or train, the actual journey to Castro de Rei is certainly longer, as only the direct route (as the crow flies) between Santa Marta de Ortigueira and Castro de Rei has been calculated here.
Air line (approximately)
64 kilometers
35 nautical miles