| Southborough to Poggibonsi | 735.08 mi (1,182.99 km) |
| Southborough to Poggio a Caiano | 713.96 mi (1,149.01 km) |
| Southborough to Poggio Renatico | 680.30 mi (1,094.84 km) |
| Southborough to Poggiomarino | 987.98 mi (1,590.00 km) |
| Southborough to Poirino | 554.82 mi (892.90 km) |
| Southborough to Policoro | 1,090.95 mi (1,755.71 km) |
| Southborough to Polistena | 1,168.79 mi (1,880.99 km) |
| Southborough to Pomezia | 875.06 mi (1,408.28 km) |
| Southborough to Pomigliano d'Arco | 976.78 mi (1,571.98 km) |
| Southborough to Pompei | 989.04 mi (1,591.71 km) |
| Southborough to Ponsacco | 710.60 mi (1,143.61 km) |
| Southborough to Pontassieve | 728.33 mi (1,172.13 km) |
| Southborough to Ponte Buggianese | 702.34 mi (1,130.31 km) |
| Southborough to Ponte San Pietro | 569.41 mi (916.37 km) |
| Southborough to Pontecorvo | 923.52 mi (1,486.26 km) |
