| Castel San Giovanni to Karis | 1,191.89 mi (1,918.16 km) |
| Castel San Giovanni to Karkkila | 1,228.89 mi (1,977.71 km) |
| Castel San Giovanni to Kauhajoki | 1,303.51 mi (2,097.80 km) |
| Castel San Giovanni to Kauhava | 1,357.50 mi (2,184.68 km) |
| Castel San Giovanni to Kauniainen | 1,222.05 mi (1,966.69 km) |
| Castel San Giovanni to Kemi | 1,538.11 mi (2,475.35 km) |
| Castel San Giovanni to Kemijarvi | 1,637.35 mi (2,635.05 km) |
| Castel San Giovanni to Kempele | 1,502.90 mi (2,418.68 km) |
| Castel San Giovanni to Kerava | 1,239.76 mi (1,995.19 km) |
| Castel San Giovanni to Keuruu | 1,335.69 mi (2,149.59 km) |
| Castel San Giovanni to Kiiminki | 1,519.96 mi (2,446.14 km) |
| Castel San Giovanni to Kirkkonummi | 1,209.93 mi (1,947.20 km) |
| Castel San Giovanni to Kitee | 1,438.45 mi (2,314.97 km) |
| Castel San Giovanni to Kiuruvesi | 1,448.85 mi (2,331.69 km) |
| Castel San Giovanni to Kivisto | 1,230.23 mi (1,979.87 km) |
