| Grefrath to Bombarral | 1,118.98 mi (1,800.82 km) |
| Grefrath to Bougado | 987.68 mi (1,589.52 km) |
| Grefrath to Braga | 971.82 mi (1,563.99 km) |
| Grefrath to Braganca | 903.27 mi (1,453.68 km) |
| Grefrath to Cabeceiras de Basto | 959.14 mi (1,543.59 km) |
| Grefrath to Cacem | 1,151.53 mi (1,853.21 km) |
| Grefrath to Cadaval | 1,119.14 mi (1,801.08 km) |
| Grefrath to Caldas da Rainha | 1,110.67 mi (1,787.44 km) |
| Grefrath to Calheta | 1,747.95 mi (2,813.06 km) |
| Grefrath to Camara de Lobos | 1,743.32 mi (2,805.60 km) |
| Grefrath to Canico | 1,742.07 mi (2,803.59 km) |
| Grefrath to Cantanhede | 1,041.75 mi (1,676.53 km) |
| Grefrath to Carregal do Sal | 1,017.80 mi (1,638.00 km) |
| Grefrath to Cartaxo | 1,113.74 mi (1,792.40 km) |
| Grefrath to Cascais | 1,158.91 mi (1,865.08 km) |
