| Caerphilly to Kecskemet | 1,077.41 mi (1,733.92 km) |
| Caerphilly to Kerepestarcsa | 1,040.62 mi (1,674.71 km) |
| Caerphilly to Keszthely | 978.41 mi (1,574.60 km) |
| Caerphilly to Kiskoros | 1,068.98 mi (1,720.35 km) |
| Caerphilly to Kiskunfelegyhaza | 1,090.33 mi (1,754.72 km) |
| Caerphilly to Kiskunhalas | 1,083.57 mi (1,743.84 km) |
| Caerphilly to Kiskunlachaza | 1,040.07 mi (1,673.84 km) |
| Caerphilly to Kiskunmajsa | 1,092.17 mi (1,757.68 km) |
| Caerphilly to Kisujszallas | 1,114.14 mi (1,793.04 km) |
| Caerphilly to Kisvarda | 1,143.68 mi (1,840.58 km) |
| Caerphilly to Komarom | 986.72 mi (1,587.97 km) |
| Caerphilly to Komlo | 1,039.75 mi (1,673.32 km) |
| Caerphilly to Kormend | 943.82 mi (1,518.93 km) |
| Caerphilly to Koszeg | 930.26 mi (1,497.12 km) |
| Caerphilly to Lajosmizse | 1,068.20 mi (1,719.11 km) |
