| Castleton to Klaukkala | 1,106.52 mi (1,780.77 km) |
| Castleton to Kokkola | 1,138.41 mi (1,832.10 km) |
| Castleton to Kontiolahti | 1,308.48 mi (2,105.80 km) |
| Castleton to Korsholm | 1,075.86 mi (1,731.43 km) |
| Castleton to Kotka | 1,180.89 mi (1,900.46 km) |
| Castleton to Kouvola | 1,178.52 mi (1,896.65 km) |
| Castleton to Kuhmo | 1,324.81 mi (2,132.08 km) |
| Castleton to Kuopio | 1,244.85 mi (2,003.40 km) |
| Castleton to Kurikka | 1,081.85 mi (1,741.06 km) |
| Castleton to Kuusamo | 1,361.32 mi (2,190.84 km) |
| Castleton to Kuusankoski | 1,176.47 mi (1,893.35 km) |
| Castleton to Lahti | 1,145.85 mi (1,844.06 km) |
| Castleton to Laitila | 1,016.73 mi (1,636.27 km) |
| Castleton to Lapinlahti | 1,246.28 mi (2,005.69 km) |
| Castleton to Lappeenranta | 1,229.87 mi (1,979.28 km) |
