| Portici to Poggibonsi | 245.27 mi (394.72 km) |
| Portici to Poggio a Caiano | 266.15 mi (428.33 km) |
| Portici to Poggio Renatico | 308.66 mi (496.74 km) |
| Portici to Poggiomarino | 11.01 mi (17.72 km) |
| Portici to Poirino | 433.84 mi (698.20 km) |
| Portici to Policoro | 129.45 mi (208.33 km) |
| Portici to Polistena | 190.75 mi (306.97 km) |
| Portici to Pomezia | 112.13 mi (180.45 km) |
| Portici to Pomigliano d'Arco | 7.37 mi (11.87 km) |
| Portici to Pompei | 9.61 mi (15.46 km) |
| Portici to Ponsacco | 270.76 mi (435.75 km) |
| Portici to Pontassieve | 252.38 mi (406.16 km) |
| Portici to Ponte Buggianese | 277.91 mi (447.25 km) |
| Portici to Ponte San Pietro | 413.11 mi (664.83 km) |
| Portici to Pontecorvo | 56.58 mi (91.06 km) |
