| Twickenham to Cocentaina | 877.78 mi (1,412.64 km) |
| Twickenham to Coin | 1,044.10 mi (1,680.32 km) |
| Twickenham to Colindres | 574.92 mi (925.24 km) |
| Twickenham to Collado-Villalba | 767.50 mi (1,235.17 km) |
| Twickenham to Colmenar Viejo | 763.21 mi (1,228.27 km) |
| Twickenham to Colmenarejo | 772.49 mi (1,243.21 km) |
| Twickenham to Conil de la Frontera | 1,086.51 mi (1,748.57 km) |
| Twickenham to Consuegra | 843.02 mi (1,356.72 km) |
| Twickenham to Corbera de Llobregat | 701.42 mi (1,128.83 km) |
| Twickenham to Cordoba | 961.84 mi (1,547.94 km) |
| Twickenham to Coria del Rio | 1,017.83 mi (1,638.04 km) |
| Twickenham to Crevillente | 912.35 mi (1,468.28 km) |
| Twickenham to Cuarte de Huerva | 682.20 mi (1,097.90 km) |
| Twickenham to Cubellas | 713.85 mi (1,148.82 km) |
| Twickenham to Cuellar | 719.34 mi (1,157.67 km) |
