| Porvoo to Kobarid | 1,093.46 mi (1,759.76 km) |
| Porvoo to Kobilje | 1,018.60 mi (1,639.27 km) |
| Porvoo to Kocevje | 1,110.43 mi (1,787.07 km) |
| Porvoo to Komen | 1,117.98 mi (1,799.21 km) |
| Porvoo to Komenda | 1,079.13 mi (1,736.69 km) |
| Porvoo to Koper | 1,135.40 mi (1,827.25 km) |
| Porvoo to Kostanjevica na Krki | 1,088.20 mi (1,751.28 km) |
| Porvoo to Kostel | 1,118.37 mi (1,799.83 km) |
| Porvoo to Kozje | 1,071.23 mi (1,723.97 km) |
| Porvoo to Kranj | 1,080.39 mi (1,738.72 km) |
| Porvoo to Kranjska Gora | 1,074.40 mi (1,729.08 km) |
| Porvoo to Krizevci | 1,030.32 mi (1,658.15 km) |
| Porvoo to Krsko | 1,080.51 mi (1,738.91 km) |
| Porvoo to Kuzma | 1,013.50 mi (1,631.08 km) |
| Porvoo to Lasko | 1,070.91 mi (1,723.47 km) |
