| Castel Gandolfo to Ciampino | 4.54 mi (7.31 km) |
| Castel Gandolfo to Cicciano | 111.47 mi (179.39 km) |
| Castel Gandolfo to Cingoli | 115.55 mi (185.96 km) |
| Castel Gandolfo to Cinisello Balsamo | 313.84 mi (505.08 km) |
| Castel Gandolfo to Cinisi | 248.50 mi (399.93 km) |
| Castel Gandolfo to Cirie | 349.45 mi (562.39 km) |
| Castel Gandolfo to Ciro Marina | 286.62 mi (461.27 km) |
| Castel Gandolfo to Cislago | 326.44 mi (525.35 km) |
| Castel Gandolfo to Cisterna di Latina | 14.11 mi (22.72 km) |
| Castel Gandolfo to Cisternino | 258.06 mi (415.31 km) |
| Castel Gandolfo to Citta di Castello | 120.22 mi (193.48 km) |
| Castel Gandolfo to Citta Sant'Angelo | 89.22 mi (143.59 km) |
| Castel Gandolfo to Cittadella | 273.14 mi (439.58 km) |
| Castel Gandolfo to Cittanova | 296.63 mi (477.38 km) |
| Castel Gandolfo to Cividale del Friuli | 303.27 mi (488.06 km) |
