| Portici to Karis | 1,388.74 mi (2,234.97 km) |
| Portici to Karkkila | 1,425.40 mi (2,293.97 km) |
| Portici to Kauhajoki | 1,528.04 mi (2,459.15 km) |
| Portici to Kauhava | 1,580.28 mi (2,543.22 km) |
| Portici to Kauniainen | 1,411.87 mi (2,272.18 km) |
| Portici to Kemi | 1,767.37 mi (2,844.31 km) |
| Portici to Kemijarvi | 1,858.54 mi (2,991.04 km) |
| Portici to Kempele | 1,722.62 mi (2,772.29 km) |
| Portici to Kerava | 1,428.46 mi (2,298.89 km) |
| Portici to Keuruu | 1,542.35 mi (2,482.18 km) |
| Portici to Kiiminki | 1,739.64 mi (2,799.67 km) |
| Portici to Kirkkonummi | 1,401.29 mi (2,255.16 km) |
| Portici to Kitee | 1,609.84 mi (2,590.78 km) |
| Portici to Kiuruvesi | 1,654.02 mi (2,661.89 km) |
| Portici to Kivisto | 1,420.17 mi (2,285.54 km) |
