| Nettuno to Cividale del Friuli | 322.40 mi (518.85 km) |
| Nettuno to Civita Castellana | 58.81 mi (94.64 km) |
| Nettuno to Civitanova Marche | 137.87 mi (221.87 km) |
| Nettuno to Civitavecchia | 62.52 mi (100.61 km) |
| Nettuno to Civitella in Val di Chiana | 143.17 mi (230.41 km) |
| Nettuno to Clusone | 333.94 mi (537.43 km) |
| Nettuno to Coccaglio | 313.42 mi (504.40 km) |
| Nettuno to Codigoro | 234.25 mi (377.00 km) |
| Nettuno to Codogno | 295.39 mi (475.39 km) |
| Nettuno to Codroipo | 311.02 mi (500.54 km) |
| Nettuno to Cogoleto | 286.55 mi (461.16 km) |
| Nettuno to Colle di Val d'Elsa | 154.78 mi (249.09 km) |
| Nettuno to Colle Salvetti | 184.60 mi (297.09 km) |
| Nettuno to Collecchio | 258.30 mi (415.70 km) |
| Nettuno to Colleferro | 25.81 mi (41.54 km) |
