| Portici to Casamassima | 134.84 mi (217.00 km) |
| Portici to Casandrino | 9.18 mi (14.77 km) |
| Portici to Casapulla | 17.33 mi (27.89 km) |
| Portici to Casarano | 208.73 mi (335.91 km) |
| Portici to Casatenovo | 421.31 mi (678.04 km) |
| Portici to Casciana Terme | 267.04 mi (429.76 km) |
| Portici to Cascina | 276.96 mi (445.72 km) |
| Portici to Caselle Torinese | 452.60 mi (728.39 km) |
| Portici to Caserta | 17.07 mi (27.47 km) |
| Portici to Casier | 349.17 mi (561.93 km) |
| Portici to Casorate Primo | 410.62 mi (660.83 km) |
| Portici to Casoria | 5.95 mi (9.57 km) |
| Portici to Cassano al Ionio | 126.35 mi (203.34 km) |
| Portici to Cassano d'Adda | 406.22 mi (653.75 km) |
| Portici to Cassano delle Murge | 126.84 mi (204.13 km) |
