| Portici to Castrovillari | 119.96 mi (193.06 km) |
| Portici to Catania | 232.85 mi (374.74 km) |
| Portici to Catanzaro | 178.72 mi (287.62 km) |
| Portici to Cattolica | 232.39 mi (373.99 km) |
| Portici to Cava de' Tirreni | 20.52 mi (33.03 km) |
| Portici to Cavallino | 205.48 mi (330.69 km) |
| Portici to Cavarzere | 319.38 mi (513.99 km) |
| Portici to Cave | 100.41 mi (161.59 km) |
| Portici to Cavriago | 330.36 mi (531.66 km) |
| Portici to Cavriglia | 236.91 mi (381.27 km) |
| Portici to Cazzago San Martino | 394.19 mi (634.39 km) |
| Portici to Ceccano | 73.55 mi (118.36 km) |
| Portici to Cecina | 261.18 mi (420.33 km) |
| Portici to Cefalu | 193.30 mi (311.08 km) |
| Portici to Ceglie Messapico | 165.79 mi (266.81 km) |
