| Caerphilly to Kelkheim (Taunus) | 517.93 mi (833.53 km) |
| Caerphilly to Kelsterbach | 522.83 mi (841.42 km) |
| Caerphilly to Kemberg | 677.89 mi (1,090.96 km) |
| Caerphilly to Kempen | 414.73 mi (667.45 km) |
| Caerphilly to Kempten | 659.83 mi (1,061.90 km) |
| Caerphilly to Kenzingen | 541.45 mi (871.37 km) |
| Caerphilly to Kerpen | 431.42 mi (694.30 km) |
| Caerphilly to Ketsch | 538.22 mi (866.18 km) |
| Caerphilly to Kevelaer | 406.23 mi (653.76 km) |
| Caerphilly to Kiel | 586.44 mi (943.78 km) |
| Caerphilly to Kierspe | 465.92 mi (749.83 km) |
| Caerphilly to Kirchhain | 527.40 mi (848.77 km) |
| Caerphilly to Kirchheim bei Munchen | 705.39 mi (1,135.21 km) |
| Caerphilly to Kirchheim unter Teck | 595.78 mi (958.82 km) |
| Caerphilly to Kirchhundem | 488.43 mi (786.05 km) |
