| Skien to Coin | 1,684.04 mi (2,710.20 km) |
| Skien to Colindres | 1,223.38 mi (1,968.84 km) |
| Skien to Collado-Villalba | 1,411.82 mi (2,272.11 km) |
| Skien to Colmenar Viejo | 1,405.82 mi (2,262.45 km) |
| Skien to Colmenarejo | 1,416.68 mi (2,279.93 km) |
| Skien to Conil de la Frontera | 1,733.68 mi (2,790.08 km) |
| Skien to Consuegra | 1,481.15 mi (2,383.68 km) |
| Skien to Corbera de Llobregat | 1,272.46 mi (2,047.82 km) |
| Skien to Cordoba | 1,604.66 mi (2,582.45 km) |
| Skien to Coria del Rio | 1,666.79 mi (2,682.43 km) |
| Skien to Crevillente | 1,519.07 mi (2,444.70 km) |
| Skien to Cuarte de Huerva | 1,298.52 mi (2,089.76 km) |
| Skien to Cubellas | 1,289.32 mi (2,074.96 km) |
| Skien to Cuellar | 1,367.82 mi (2,201.29 km) |
| Skien to Cuenca | 1,417.59 mi (2,281.38 km) |
