| Grefrath to Castelo Branco | 1,036.44 mi (1,667.99 km) |
| Grefrath to Castro Daire | 990.24 mi (1,593.63 km) |
| Grefrath to Celorico de Basto | 966.53 mi (1,555.47 km) |
| Grefrath to Chamusca | 1,093.14 mi (1,759.23 km) |
| Grefrath to Chaves | 930.06 mi (1,496.79 km) |
| Grefrath to Cinfaes | 986.03 mi (1,586.86 km) |
| Grefrath to Coimbra | 1,043.76 mi (1,679.77 km) |
| Grefrath to Condeixa-a-Nova | 1,051.21 mi (1,691.75 km) |
| Grefrath to Corroios | 1,155.31 mi (1,859.30 km) |
| Grefrath to Coruche | 1,116.60 mi (1,796.99 km) |
| Grefrath to Costa de Caparica | 1,156.29 mi (1,860.87 km) |
| Grefrath to Covilha | 1,010.29 mi (1,625.90 km) |
| Grefrath to Eiras | 1,041.90 mi (1,676.77 km) |
| Grefrath to Elvas | 1,080.41 mi (1,738.75 km) |
| Grefrath to Entroncamento | 1,086.21 mi (1,748.09 km) |
