The calculated distance (air line) between Riachos and Figueira da Foz is approximately 52 miles respectively 84 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 Riachos and Figueira da Foz has been calculated here.
Air line (approximately)
84 kilometers
45 nautical miles