| Greenock to Benavente | 1,187.97 mi (1,911.85 km) |
| Greenock to Bombarral | 1,170.02 mi (1,882.97 km) |
| Greenock to Bougado | 1,024.02 mi (1,648.00 km) |
| Greenock to Braga | 1,008.40 mi (1,622.86 km) |
| Greenock to Braganca | 981.29 mi (1,579.24 km) |
| Greenock to Cabeceiras de Basto | 1,006.77 mi (1,620.24 km) |
| Greenock to Cacem | 1,205.24 mi (1,939.65 km) |
| Greenock to Cadaval | 1,171.97 mi (1,886.10 km) |
| Greenock to Caldas da Rainha | 1,160.36 mi (1,867.42 km) |
| Greenock to Calheta | 1,711.61 mi (2,754.57 km) |
| Greenock to Camara de Lobos | 1,710.52 mi (2,752.82 km) |
| Greenock to Canico | 1,712.02 mi (2,755.23 km) |
| Greenock to Cantanhede | 1,092.05 mi (1,757.49 km) |
| Greenock to Carregal do Sal | 1,082.10 mi (1,741.48 km) |
| Greenock to Cartaxo | 1,175.30 mi (1,891.46 km) |
