The calculated distance (air line) between Oliveira do Bairro and Guimarães is approximately 65 miles respectively 105 kilometers.
By car or train, the actual journey to Guimarães is certainly longer, as only the direct route (as the crow flies) between Oliveira do Bairro and Guimarães has been calculated here.
Air line (approximately)
105 kilometers
57 nautical miles