| Porvoo to Nazarje | 1,064.90 mi (1,713.79 km) |
| Porvoo to Nova Gorica | 1,110.90 mi (1,787.82 km) |
| Porvoo to Nova Vas | 1,107.81 mi (1,782.85 km) |
| Porvoo to Novo Mesto | 1,095.28 mi (1,762.68 km) |
| Porvoo to Odranci | 1,026.82 mi (1,652.50 km) |
| Porvoo to Oplotnica | 1,052.65 mi (1,694.07 km) |
| Porvoo to Ormoz | 1,040.34 mi (1,674.26 km) |
| Porvoo to Osilnica | 1,120.47 mi (1,803.23 km) |
| Porvoo to Pesnica | 1,034.49 mi (1,664.85 km) |
| Porvoo to Piran | 1,139.69 mi (1,834.16 km) |
| Porvoo to Pivka | 1,118.75 mi (1,800.46 km) |
| Porvoo to Podcetrtek | 1,065.19 mi (1,714.25 km) |
| Porvoo to Podlehnik | 1,049.16 mi (1,688.46 km) |
| Porvoo to Podvelka | 1,041.49 mi (1,676.12 km) |
| Porvoo to Poljcane | 1,055.27 mi (1,698.29 km) |
