| Portici to Chivasso | 444.21 mi (714.89 km) |
| Portici to Ciampino | 112.92 mi (181.74 km) |
| Portici to Cicciano | 14.28 mi (22.98 km) |
| Portici to Cingoli | 185.18 mi (298.01 km) |
| Portici to Cinisello Balsamo | 416.30 mi (669.98 km) |
| Portici to Cinisi | 194.88 mi (313.62 km) |
| Portici to Cirie | 456.87 mi (735.26 km) |
| Portici to Ciro Marina | 178.13 mi (286.67 km) |
| Portici to Cislago | 429.41 mi (691.06 km) |
| Portici to Cisterna di Latina | 94.99 mi (152.86 km) |
| Portici to Cisternino | 161.89 mi (260.54 km) |
| Portici to Citta di Castello | 211.75 mi (340.77 km) |
| Portici to Citta Sant'Angelo | 118.21 mi (190.24 km) |
| Portici to Cittadella | 357.66 mi (575.61 km) |
| Portici to Cittanova | 194.22 mi (312.56 km) |
