| Sierpc to Bombarral | 1,653.56 mi (2,661.15 km) |
| Sierpc to Bougado | 1,533.69 mi (2,468.24 km) |
| Sierpc to Braga | 1,518.62 mi (2,443.98 km) |
| Sierpc to Braganca | 1,442.18 mi (2,320.97 km) |
| Sierpc to Cabeceiras de Basto | 1,503.58 mi (2,419.78 km) |
| Sierpc to Cacem | 1,683.53 mi (2,709.38 km) |
| Sierpc to Cadaval | 1,653.12 mi (2,660.44 km) |
| Sierpc to Caldas da Rainha | 1,646.13 mi (2,649.19 km) |
| Sierpc to Calheta | 2,289.18 mi (3,684.07 km) |
| Sierpc to Camara de Lobos | 2,283.54 mi (3,675.01 km) |
| Sierpc to Canico | 2,281.45 mi (3,671.64 km) |
| Sierpc to Cantanhede | 1,580.71 mi (2,543.91 km) |
| Sierpc to Carregal do Sal | 1,553.68 mi (2,500.41 km) |
| Sierpc to Cartaxo | 1,645.04 mi (2,647.43 km) |
| Sierpc to Cascais | 1,691.11 mi (2,721.57 km) |
