| Grenchen to Poggibonsi | 315.27 mi (507.37 km) |
| Grenchen to Poggio a Caiano | 293.07 mi (471.65 km) |
| Grenchen to Poggio Renatico | 258.00 mi (415.21 km) |
| Grenchen to Poggiomarino | 566.41 mi (911.55 km) |
| Grenchen to Poirino | 158.31 mi (254.77 km) |
| Grenchen to Policoro | 668.24 mi (1,075.43 km) |
| Grenchen to Polistena | 748.74 mi (1,204.97 km) |
| Grenchen to Pomezia | 456.93 mi (735.35 km) |
| Grenchen to Pomigliano d'Arco | 555.27 mi (893.62 km) |
| Grenchen to Pompei | 567.65 mi (913.55 km) |
| Grenchen to Ponsacco | 292.57 mi (470.84 km) |
| Grenchen to Pontassieve | 306.53 mi (493.32 km) |
| Grenchen to Ponte Buggianese | 282.59 mi (454.78 km) |
| Grenchen to Ponte San Pietro | 146.71 mi (236.10 km) |
| Grenchen to Pontecorvo | 502.35 mi (808.45 km) |
