| Castelnuovo di Porto to Karis | 1,326.39 mi (2,134.61 km) |
| Castelnuovo di Porto to Karkkila | 1,363.43 mi (2,194.23 km) |
| Castelnuovo di Porto to Kauhajoki | 1,457.23 mi (2,345.19 km) |
| Castelnuovo di Porto to Kauhava | 1,510.35 mi (2,430.68 km) |
| Castelnuovo di Porto to Kauniainen | 1,352.06 mi (2,175.93 km) |
| Castelnuovo di Porto to Kemi | 1,696.11 mi (2,729.62 km) |
| Castelnuovo di Porto to Kemijarvi | 1,790.43 mi (2,881.42 km) |
| Castelnuovo di Porto to Kempele | 1,654.45 mi (2,662.58 km) |
| Castelnuovo di Porto to Kerava | 1,369.15 mi (2,203.44 km) |
| Castelnuovo di Porto to Keuruu | 1,477.71 mi (2,378.14 km) |
| Castelnuovo di Porto to Kiiminki | 1,671.56 mi (2,690.11 km) |
| Castelnuovo di Porto to Kirkkonummi | 1,340.88 mi (2,157.94 km) |
| Castelnuovo di Porto to Kitee | 1,557.62 mi (2,506.75 km) |
| Castelnuovo di Porto to Kiuruvesi | 1,590.51 mi (2,559.67 km) |
| Castelnuovo di Porto to Kivisto | 1,360.38 mi (2,189.32 km) |
