| Twickenham to Cividale del Friuli | 726.13 mi (1,168.60 km) |
| Twickenham to Civita Castellana | 870.77 mi (1,401.37 km) |
| Twickenham to Civitanova Marche | 863.68 mi (1,389.96 km) |
| Twickenham to Civitavecchia | 862.11 mi (1,387.42 km) |
| Twickenham to Civitella in Val di Chiana | 788.91 mi (1,269.63 km) |
| Twickenham to Clusone | 605.85 mi (975.02 km) |
| Twickenham to Coccaglio | 622.15 mi (1,001.25 km) |
| Twickenham to Codigoro | 732.24 mi (1,178.43 km) |
| Twickenham to Codogno | 632.84 mi (1,018.46 km) |
| Twickenham to Codroipo | 714.17 mi (1,149.35 km) |
| Twickenham to Cogoleto | 640.10 mi (1,030.14 km) |
| Twickenham to Colle di Val d'Elsa | 770.78 mi (1,240.45 km) |
| Twickenham to Colle Salvetti | 739.41 mi (1,189.97 km) |
| Twickenham to Collecchio | 670.62 mi (1,079.27 km) |
| Twickenham to Colleferro | 920.59 mi (1,481.54 km) |
