The calculated distance (air line) between Silvalde and Figueira da Foz is approximately 59 miles respectively 96 kilometers.
By car or train, the actual journey to Figueira da Foz is certainly longer, as only the direct route (as the crow flies) between Silvalde and Figueira da Foz has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles