| Grimstad to Pontedera | 1,017.90 mi (1,638.16 km) |
| Grimstad to Pontinia | 1,185.93 mi (1,908.57 km) |
| Grimstad to Porcari | 1,005.51 mi (1,618.21 km) |
| Grimstad to Porcia | 871.40 mi (1,402.38 km) |
| Grimstad to Pordenone | 872.81 mi (1,404.65 km) |
| Grimstad to Portici | 1,236.56 mi (1,990.05 km) |
| Grimstad to Porto Empedocle | 1,471.11 mi (2,367.51 km) |
| Grimstad to Porto Recanati | 1,052.78 mi (1,694.28 km) |
| Grimstad to Porto Sant'Elpidio | 1,064.79 mi (1,713.62 km) |
| Grimstad to Porto Tolle | 938.50 mi (1,510.37 km) |
| Grimstad to Porto Torres | 1,209.41 mi (1,946.36 km) |
| Grimstad to Portoferraio | 1,075.16 mi (1,730.31 km) |
| Grimstad to Portogruaro | 885.67 mi (1,425.35 km) |
| Grimstad to Portomaggiore | 952.22 mi (1,532.45 km) |
| Grimstad to Potenza | 1,263.76 mi (2,033.83 km) |
