| Twickenham to Carmona | 1,000.10 mi (1,609.50 km) |
| Twickenham to Cartagena | 957.39 mi (1,540.77 km) |
| Twickenham to Cartama | 1,039.87 mi (1,673.50 km) |
| Twickenham to Cartaya | 1,033.88 mi (1,663.86 km) |
| Twickenham to Caspe | 705.98 mi (1,136.17 km) |
| Twickenham to Cassa de la Selva | 677.66 mi (1,090.58 km) |
| Twickenham to Castalla | 888.15 mi (1,429.35 km) |
| Twickenham to Castellbisbal | 697.71 mi (1,122.85 km) |
| Twickenham to Castelldefels | 711.12 mi (1,144.44 km) |
| Twickenham to Castello de Ampurias | 654.97 mi (1,054.08 km) |
| Twickenham to Castellon de la Plana | 792.35 mi (1,275.17 km) |
| Twickenham to Castilleja de la Cuesta | 1,011.13 mi (1,627.26 km) |
| Twickenham to Catarroja | 832.32 mi (1,339.49 km) |
| Twickenham to Catral | 918.50 mi (1,478.19 km) |
| Twickenham to Caudete | 881.13 mi (1,418.04 km) |
