| Grimstad to Poggibonsi | 1,033.51 mi (1,663.28 km) |
| Grimstad to Poggio a Caiano | 1,009.05 mi (1,623.91 km) |
| Grimstad to Poggio Renatico | 945.94 mi (1,522.34 km) |
| Grimstad to Poggiomarino | 1,239.80 mi (1,995.26 km) |
| Grimstad to Poirino | 927.75 mi (1,493.07 km) |
| Grimstad to Policoro | 1,302.96 mi (2,096.91 km) |
| Grimstad to Polistena | 1,417.76 mi (2,281.66 km) |
| Grimstad to Pomezia | 1,164.39 mi (1,873.90 km) |
| Grimstad to Pomigliano d'Arco | 1,230.49 mi (1,980.28 km) |
| Grimstad to Pompei | 1,242.74 mi (2,000.00 km) |
| Grimstad to Ponsacco | 1,021.06 mi (1,643.24 km) |
| Grimstad to Pontassieve | 1,013.70 mi (1,631.39 km) |
| Grimstad to Ponte Buggianese | 1,006.05 mi (1,619.09 km) |
| Grimstad to Ponte San Pietro | 874.52 mi (1,407.41 km) |
| Grimstad to Pontecorvo | 1,186.99 mi (1,910.27 km) |
