| Groningen to Bombarral | 1,216.33 mi (1,957.49 km) |
| Groningen to Bougado | 1,080.16 mi (1,738.34 km) |
| Groningen to Braga | 1,063.98 mi (1,712.31 km) |
| Groningen to Braganca | 1,000.72 mi (1,610.50 km) |
| Groningen to Cabeceiras de Basto | 1,052.88 mi (1,694.44 km) |
| Groningen to Cacem | 1,249.81 mi (2,011.37 km) |
| Groningen to Cadaval | 1,216.77 mi (1,958.21 km) |
| Groningen to Caldas da Rainha | 1,207.67 mi (1,943.55 km) |
| Groningen to Calheta | 1,838.11 mi (2,958.15 km) |
| Groningen to Camara de Lobos | 1,834.03 mi (2,951.59 km) |
| Groningen to Canico | 1,833.22 mi (2,950.29 km) |
| Groningen to Cantanhede | 1,137.63 mi (1,830.84 km) |
| Groningen to Carregal do Sal | 1,115.49 mi (1,795.20 km) |
| Groningen to Cartaxo | 1,212.67 mi (1,951.60 km) |
| Groningen to Cascais | 1,257.03 mi (2,022.99 km) |
