| Caerfyrddin to Karis | 1,209.05 mi (1,945.79 km) |
| Caerfyrddin to Karkkila | 1,236.03 mi (1,989.19 km) |
| Caerfyrddin to Kauhajoki | 1,218.66 mi (1,961.25 km) |
| Caerfyrddin to Kauhava | 1,263.52 mi (2,033.45 km) |
| Caerfyrddin to Kauniainen | 1,247.24 mi (2,007.24 km) |
| Caerfyrddin to Kemi | 1,387.16 mi (2,232.41 km) |
| Caerfyrddin to Kemijarvi | 1,489.81 mi (2,397.61 km) |
| Caerfyrddin to Kempele | 1,384.52 mi (2,228.17 km) |
| Caerfyrddin to Kerava | 1,262.58 mi (2,031.93 km) |
| Caerfyrddin to Keuruu | 1,288.98 mi (2,074.42 km) |
| Caerfyrddin to Kiiminki | 1,398.27 mi (2,250.30 km) |
| Caerfyrddin to Kirkkonummi | 1,234.97 mi (1,987.49 km) |
| Caerfyrddin to Kitee | 1,453.23 mi (2,338.75 km) |
| Caerfyrddin to Kiuruvesi | 1,379.49 mi (2,220.07 km) |
| Caerfyrddin to Kivisto | 1,252.82 mi (2,016.22 km) |
