| Tarquinia to Cividale del Friuli | 278.73 mi (448.57 km) |
| Tarquinia to Civita Castellana | 33.59 mi (54.05 km) |
| Tarquinia to Civitanova Marche | 123.80 mi (199.23 km) |
| Tarquinia to Civitavecchia | 10.55 mi (16.98 km) |
| Tarquinia to Civitella in Val di Chiana | 80.69 mi (129.86 km) |
| Tarquinia to Clusone | 266.60 mi (429.05 km) |
| Tarquinia to Coccaglio | 245.47 mi (395.05 km) |
| Tarquinia to Codigoro | 179.45 mi (288.80 km) |
| Tarquinia to Codogno | 225.69 mi (363.21 km) |
| Tarquinia to Codroipo | 263.63 mi (424.28 km) |
| Tarquinia to Cogoleto | 215.16 mi (346.27 km) |
| Tarquinia to Colle di Val d'Elsa | 85.55 mi (137.67 km) |
| Tarquinia to Colle Salvetti | 113.39 mi (182.48 km) |
| Tarquinia to Collecchio | 189.22 mi (304.52 km) |
| Tarquinia to Colleferro | 73.90 mi (118.93 km) |
