| Conwy to Cascais | 1,041.67 mi (1,676.40 km) |
| Conwy to Castelo Branco | 946.10 mi (1,522.61 km) |
| Conwy to Castro Daire | 876.51 mi (1,410.60 km) |
| Conwy to Celorico de Basto | 844.49 mi (1,359.07 km) |
| Conwy to Chamusca | 987.22 mi (1,588.78 km) |
| Conwy to Chaves | 814.93 mi (1,311.50 km) |
| Conwy to Cinfaes | 865.07 mi (1,392.19 km) |
| Conwy to Coimbra | 928.36 mi (1,494.06 km) |
| Conwy to Condeixa-a-Nova | 935.52 mi (1,505.57 km) |
| Conwy to Corroios | 1,044.29 mi (1,680.62 km) |
| Conwy to Coruche | 1,014.31 mi (1,632.38 km) |
| Conwy to Costa de Caparica | 1,043.25 mi (1,678.95 km) |
| Conwy to Covilha | 914.30 mi (1,471.43 km) |
| Conwy to Eiras | 926.21 mi (1,490.59 km) |
| Conwy to Elvas | 1,008.21 mi (1,622.56 km) |
