| Porsgrunn to Poggibonsi | 1,082.96 mi (1,742.85 km) |
| Porsgrunn to Poggio a Caiano | 1,058.61 mi (1,703.67 km) |
| Porsgrunn to Poggio Renatico | 994.31 mi (1,600.19 km) |
| Porsgrunn to Poggiomarino | 1,282.83 mi (2,064.51 km) |
| Porsgrunn to Poirino | 983.86 mi (1,583.37 km) |
| Porsgrunn to Policoro | 1,341.74 mi (2,159.33 km) |
| Porsgrunn to Polistena | 1,458.74 mi (2,347.61 km) |
| Porsgrunn to Pomezia | 1,211.42 mi (1,949.59 km) |
| Porsgrunn to Pomigliano d'Arco | 1,273.78 mi (2,049.95 km) |
| Porsgrunn to Pompei | 1,285.89 mi (2,069.45 km) |
| Porsgrunn to Ponsacco | 1,071.58 mi (1,724.55 km) |
| Porsgrunn to Pontassieve | 1,062.45 mi (1,709.85 km) |
| Porsgrunn to Ponte Buggianese | 1,056.30 mi (1,699.95 km) |
| Porsgrunn to Ponte San Pietro | 927.09 mi (1,492.01 km) |
| Porsgrunn to Pontecorvo | 1,231.62 mi (1,982.10 km) |
