| Gravelines to Poggio a Caiano | 647.25 mi (1,041.65 km) |
| Gravelines to Poggio Renatico | 609.65 mi (981.14 km) |
| Gravelines to Poggiomarino | 920.62 mi (1,481.60 km) |
| Gravelines to Poirino | 495.32 mi (797.14 km) |
| Gravelines to Policoro | 1,020.86 mi (1,642.92 km) |
| Gravelines to Polistena | 1,102.92 mi (1,774.98 km) |
| Gravelines to Pomezia | 810.40 mi (1,304.22 km) |
| Gravelines to Pomigliano d'Arco | 909.49 mi (1,463.69 km) |
| Gravelines to Pompei | 921.89 mi (1,483.64 km) |
| Gravelines to Ponsacco | 645.73 mi (1,039.20 km) |
| Gravelines to Pontassieve | 660.77 mi (1,063.40 km) |
| Gravelines to Ponte Buggianese | 636.45 mi (1,024.26 km) |
| Gravelines to Ponte San Pietro | 500.42 mi (805.35 km) |
| Gravelines to Pontecorvo | 856.60 mi (1,378.57 km) |
| Gravelines to Pontedera | 643.12 mi (1,035.01 km) |
