| Castaic to Karis | 5,561.14 mi (8,949.80 km) |
| Castaic to Karkkila | 5,543.26 mi (8,921.02 km) |
| Castaic to Kauhajoki | 5,396.27 mi (8,684.45 km) |
| Castaic to Kauhava | 5,371.85 mi (8,645.16 km) |
| Castaic to Kauniainen | 5,571.04 mi (8,965.72 km) |
| Castaic to Kemi | 5,238.90 mi (8,431.19 km) |
| Castaic to Kemijarvi | 5,219.30 mi (8,399.64 km) |
| Castaic to Kempele | 5,301.79 mi (8,532.40 km) |
| Castaic to Kerava | 5,566.27 mi (8,958.05 km) |
| Castaic to Keuruu | 5,448.46 mi (8,768.45 km) |
| Castaic to Kiiminki | 5,292.38 mi (8,517.26 km) |
| Castaic to Kirkkonummi | 5,571.57 mi (8,966.58 km) |
| Castaic to Kitee | 5,539.98 mi (8,915.74 km) |
| Castaic to Kiuruvesi | 5,394.14 mi (8,681.02 km) |
| Castaic to Kivisto | 5,566.54 mi (8,958.48 km) |
