| Portici to Celano | 96.47 mi (155.25 km) |
| Portici to Cento | 311.66 mi (501.57 km) |
| Portici to Cepagatti | 107.82 mi (173.53 km) |
| Portici to Ceprano | 66.21 mi (106.55 km) |
| Portici to Cercola | 3.28 mi (5.28 km) |
| Portici to Cerea | 341.27 mi (549.23 km) |
| Portici to Cerese | 344.05 mi (553.70 km) |
| Portici to Cerignola | 86.91 mi (139.86 km) |
| Portici to Cermenate | 428.39 mi (689.42 km) |
| Portici to Cernusco sul Naviglio | 410.92 mi (661.31 km) |
| Portici to Cerreto Guidi | 269.56 mi (433.82 km) |
| Portici to Cerro Maggiore | 427.33 mi (687.73 km) |
| Portici to Certaldo | 253.09 mi (407.30 km) |
| Portici to Cerveteri | 141.90 mi (228.36 km) |
| Portici to Cervia | 258.19 mi (415.51 km) |
