| Risca to Cascais | 942.73 mi (1,517.17 km) |
| Risca to Castelo Branco | 841.61 mi (1,354.44 km) |
| Risca to Castro Daire | 774.74 mi (1,246.82 km) |
| Risca to Celorico de Basto | 743.61 mi (1,196.73 km) |
| Risca to Chamusca | 885.70 mi (1,425.40 km) |
| Risca to Chaves | 712.36 mi (1,146.44 km) |
| Risca to Cinfaes | 764.35 mi (1,230.10 km) |
| Risca to Coimbra | 827.65 mi (1,331.97 km) |
| Risca to Condeixa-a-Nova | 834.95 mi (1,343.73 km) |
| Risca to Corroios | 944.31 mi (1,519.71 km) |
| Risca to Coruche | 912.53 mi (1,468.58 km) |
| Risca to Costa de Caparica | 943.60 mi (1,518.58 km) |
| Risca to Covilha | 810.24 mi (1,303.95 km) |
| Risca to Eiras | 825.51 mi (1,328.53 km) |
| Risca to Elvas | 901.85 mi (1,451.39 km) |
