| Grefrath to Poggio a Caiano | 564.02 mi (907.71 km) |
| Grefrath to Poggio Renatico | 512.10 mi (824.15 km) |
| Grefrath to Poggiomarino | 826.34 mi (1,329.87 km) |
| Grefrath to Poirino | 448.65 mi (722.03 km) |
| Grefrath to Policoro | 914.40 mi (1,471.58 km) |
| Grefrath to Polistena | 1,010.75 mi (1,626.64 km) |
| Grefrath to Pomezia | 728.74 mi (1,172.79 km) |
| Grefrath to Pomigliano d'Arco | 815.69 mi (1,312.73 km) |
| Grefrath to Pompei | 828.34 mi (1,333.09 km) |
| Grefrath to Ponsacco | 569.55 mi (916.59 km) |
| Grefrath to Pontassieve | 573.60 mi (923.13 km) |
| Grefrath to Ponte Buggianese | 556.86 mi (896.18 km) |
| Grefrath to Ponte San Pietro | 416.86 mi (670.87 km) |
| Grefrath to Pontecorvo | 765.44 mi (1,231.85 km) |
| Grefrath to Pontedera | 566.55 mi (911.77 km) |
