| Silver Spring to Cocentaina | 3,985.73 mi (6,414.42 km) |
| Silver Spring to Coin | 3,838.32 mi (6,177.18 km) |
| Silver Spring to Colindres | 3,709.95 mi (5,970.59 km) |
| Silver Spring to Collado-Villalba | 3,758.54 mi (6,048.78 km) |
| Silver Spring to Colmenar Viejo | 3,769.44 mi (6,066.32 km) |
| Silver Spring to Colmenarejo | 3,760.16 mi (6,051.39 km) |
| Silver Spring to Conil de la Frontera | 3,783.90 mi (6,089.59 km) |
| Silver Spring to Consuegra | 3,811.32 mi (6,133.73 km) |
| Silver Spring to Corbera de Llobregat | 4,016.28 mi (6,463.58 km) |
| Silver Spring to Cordoba | 3,800.27 mi (6,115.95 km) |
| Silver Spring to Coria del Rio | 3,755.19 mi (6,043.39 km) |
| Silver Spring to Crevillente | 3,983.31 mi (6,410.51 km) |
| Silver Spring to Cuarte de Huerva | 3,878.21 mi (6,241.38 km) |
| Silver Spring to Cubellas | 4,010.55 mi (6,454.36 km) |
| Silver Spring to Cuellar | 3,722.72 mi (5,991.13 km) |
