| Piraeus to Ciampino | 642.91 mi (1,034.67 km) |
| Piraeus to Cicciano | 528.84 mi (851.08 km) |
| Piraeus to Cingoli | 662.02 mi (1,065.42 km) |
| Piraeus to Cinisello Balsamo | 908.60 mi (1,462.25 km) |
| Piraeus to Cinisi | 573.71 mi (923.29 km) |
| Piraeus to Cirie | 967.67 mi (1,557.31 km) |
| Piraeus to Ciro Marina | 365.19 mi (587.72 km) |
| Piraeus to Cislago | 922.52 mi (1,484.65 km) |
| Piraeus to Cisterna di Latina | 626.82 mi (1,008.77 km) |
| Piraeus to Cisternino | 383.81 mi (617.69 km) |
| Piraeus to Citta di Castello | 707.61 mi (1,138.79 km) |
| Piraeus to Citta Sant'Angelo | 596.20 mi (959.50 km) |
| Piraeus to Cittadella | 809.00 mi (1,301.97 km) |
| Piraeus to Cittanova | 411.83 mi (662.78 km) |
| Piraeus to Cividale del Friuli | 768.48 mi (1,236.74 km) |
