| Castanet-Tolosan to Karis | 1,470.40 mi (2,366.38 km) |
| Castanet-Tolosan to Karkkila | 1,505.69 mi (2,423.18 km) |
| Castanet-Tolosan to Kauhajoki | 1,549.56 mi (2,493.78 km) |
| Castanet-Tolosan to Kauhava | 1,602.57 mi (2,579.09 km) |
| Castanet-Tolosan to Kauniainen | 1,505.01 mi (2,422.07 km) |
| Castanet-Tolosan to Kemi | 1,768.06 mi (2,845.42 km) |
| Castanet-Tolosan to Kemijarvi | 1,872.03 mi (3,012.74 km) |
| Castanet-Tolosan to Kempele | 1,744.47 mi (2,807.45 km) |
| Castanet-Tolosan to Kerava | 1,522.74 mi (2,450.62 km) |
| Castanet-Tolosan to Keuruu | 1,597.78 mi (2,571.38 km) |
| Castanet-Tolosan to Kiiminki | 1,760.86 mi (2,833.83 km) |
| Castanet-Tolosan to Kirkkonummi | 1,492.22 mi (2,401.50 km) |
| Castanet-Tolosan to Kitee | 1,726.93 mi (2,779.23 km) |
| Castanet-Tolosan to Kiuruvesi | 1,707.17 mi (2,747.43 km) |
| Castanet-Tolosan to Kivisto | 1,512.67 mi (2,434.41 km) |
