| Castleton to Karis | 1,065.31 mi (1,714.45 km) |
| Castleton to Karkkila | 1,091.36 mi (1,756.37 km) |
| Castleton to Kauhajoki | 1,070.27 mi (1,722.43 km) |
| Castleton to Kauhava | 1,114.67 mi (1,793.89 km) |
| Castleton to Kauniainen | 1,103.46 mi (1,775.85 km) |
| Castleton to Kemi | 1,237.51 mi (1,991.57 km) |
| Castleton to Kemijarvi | 1,340.20 mi (2,156.85 km) |
| Castleton to Kempele | 1,234.97 mi (1,987.49 km) |
| Castleton to Kerava | 1,118.47 mi (1,800.01 km) |
| Castleton to Keuruu | 1,141.38 mi (1,836.88 km) |
| Castleton to Kiiminki | 1,248.68 mi (2,009.55 km) |
| Castleton to Kirkkonummi | 1,091.34 mi (1,756.34 km) |
| Castleton to Kitee | 1,306.95 mi (2,103.32 km) |
| Castleton to Kiuruvesi | 1,230.73 mi (1,980.68 km) |
| Castleton to Kivisto | 1,108.82 mi (1,784.47 km) |
