| Gragnano to Poggio a Caiano | 278.52 mi (448.24 km) |
| Gragnano to Poggio Renatico | 320.46 mi (515.73 km) |
| Gragnano to Poggiomarino | 7.43 mi (11.96 km) |
| Gragnano to Poirino | 446.36 mi (718.34 km) |
| Gragnano to Policoro | 118.18 mi (190.20 km) |
| Gragnano to Polistena | 178.85 mi (287.83 km) |
| Gragnano to Pomezia | 124.44 mi (200.26 km) |
| Gragnano to Pomigliano d'Arco | 16.42 mi (26.42 km) |
| Gragnano to Pompei | 3.84 mi (6.18 km) |
| Gragnano to Ponsacco | 283.26 mi (455.86 km) |
| Gragnano to Pontassieve | 264.64 mi (425.90 km) |
| Gragnano to Ponte Buggianese | 290.34 mi (467.26 km) |
| Gragnano to Ponte San Pietro | 425.30 mi (684.46 km) |
| Gragnano to Pontecorvo | 68.97 mi (111.00 km) |
| Gragnano to Pontedera | 285.48 mi (459.44 km) |
