| Portici to Castelo Branco | 1,149.72 mi (1,850.29 km) |
| Portici to Castro Daire | 1,160.82 mi (1,868.17 km) |
| Portici to Celorico de Basto | 1,160.62 mi (1,867.83 km) |
| Portici to Chamusca | 1,207.40 mi (1,943.12 km) |
| Portici to Chaves | 1,131.32 mi (1,820.69 km) |
| Portici to Cinfaes | 1,169.55 mi (1,882.21 km) |
| Portici to Coimbra | 1,193.43 mi (1,920.63 km) |
| Portici to Condeixa-a-Nova | 1,198.20 mi (1,928.32 km) |
| Portici to Corroios | 1,253.97 mi (2,018.08 km) |
| Portici to Coruche | 1,215.68 mi (1,956.44 km) |
| Portici to Costa de Caparica | 1,257.90 mi (2,024.39 km) |
| Portici to Covilha | 1,144.26 mi (1,841.50 km) |
| Portici to Eiras | 1,192.81 mi (1,919.64 km) |
| Portici to Elvas | 1,145.14 mi (1,842.93 km) |
| Portici to Entroncamento | 1,204.95 mi (1,939.18 km) |
