| Castellon de la Plana to Karis | 1,721.42 mi (2,770.36 km) |
| Castellon de la Plana to Karkkila | 1,757.08 mi (2,827.75 km) |
| Castellon de la Plana to Kauhajoki | 1,804.44 mi (2,903.97 km) |
| Castellon de la Plana to Kauhava | 1,857.62 mi (2,989.55 km) |
| Castellon de la Plana to Kauniainen | 1,755.45 mi (2,825.12 km) |
| Castellon de la Plana to Kemi | 2,024.16 mi (3,257.56 km) |
| Castellon de la Plana to Kemijarvi | 2,128.01 mi (3,424.70 km) |
| Castellon de la Plana to Kempele | 1,999.96 mi (3,218.62 km) |
| Castellon de la Plana to Kerava | 1,773.24 mi (2,853.75 km) |
| Castellon de la Plana to Keuruu | 1,851.28 mi (2,979.35 km) |
| Castellon de la Plana to Kiiminki | 2,016.41 mi (3,245.10 km) |
| Castellon de la Plana to Kirkkonummi | 1,742.73 mi (2,804.65 km) |
| Castellon de la Plana to Kitee | 1,977.09 mi (3,181.81 km) |
| Castellon de la Plana to Kiuruvesi | 1,961.28 mi (3,156.38 km) |
| Castellon de la Plana to Kivisto | 1,763.22 mi (2,837.63 km) |
