| Clarksburg to Benavente | 3,577.28 mi (5,757.08 km) |
| Clarksburg to Bombarral | 3,551.55 mi (5,715.67 km) |
| Clarksburg to Bougado | 3,525.96 mi (5,674.49 km) |
| Clarksburg to Braga | 3,527.18 mi (5,676.45 km) |
| Clarksburg to Braganca | 3,600.03 mi (5,793.69 km) |
| Clarksburg to Cabeceiras de Basto | 3,546.98 mi (5,708.31 km) |
| Clarksburg to Cacem | 3,557.60 mi (5,725.40 km) |
| Clarksburg to Cadaval | 3,555.22 mi (5,721.57 km) |
| Clarksburg to Caldas da Rainha | 3,548.75 mi (5,711.16 km) |
| Clarksburg to Calheta | 3,329.23 mi (5,357.87 km) |
| Clarksburg to Camara de Lobos | 3,339.97 mi (5,375.16 km) |
| Clarksburg to Canico | 3,348.29 mi (5,388.54 km) |
| Clarksburg to Cantanhede | 3,550.11 mi (5,713.35 km) |
| Clarksburg to Carregal do Sal | 3,576.65 mi (5,756.06 km) |
| Clarksburg to Cartaxo | 3,573.07 mi (5,750.30 km) |
