The calculated distance (air line) between Póvoa de Lanhoso and Ermesinde is approximately 29 miles respectively 46 kilometers.
By car or train, the actual journey to Ermesinde is certainly longer, as only the direct route (as the crow flies) between Póvoa de Lanhoso and Ermesinde has been calculated here.
Air line (approximately)
46 kilometers
25 nautical miles