| Caerphilly to Glyka Nera | 1,610.55 mi (2,591.93 km) |
| Caerphilly to Grevena | 1,416.81 mi (2,280.14 km) |
| Caerphilly to Ialysos | 1,855.96 mi (2,986.87 km) |
| Caerphilly to Ilion | 1,602.77 mi (2,579.42 km) |
| Caerphilly to Ilioupoli | 1,609.56 mi (2,590.33 km) |
| Caerphilly to Ioannina | 1,414.30 mi (2,276.09 km) |
| Caerphilly to Irakleio | 1,791.85 mi (2,883.71 km) |
| Caerphilly to Irakleio | 1,604.56 mi (2,582.29 km) |
| Caerphilly to Kaisariani | 1,608.18 mi (2,588.12 km) |
| Caerphilly to Kalamaria | 1,454.38 mi (2,340.60 km) |
| Caerphilly to Kalamata | 1,591.39 mi (2,561.10 km) |
| Caerphilly to Kallithea | 1,606.81 mi (2,585.91 km) |
| Caerphilly to Kalymnos | 1,782.07 mi (2,867.96 km) |
| Caerphilly to Kalyvia Thorikou | 1,620.88 mi (2,608.56 km) |
| Caerphilly to Kamatero | 1,601.96 mi (2,578.11 km) |
