| Caerfyrddin to Collegno | 716.74 mi (1,153.48 km) |
| Caerfyrddin to Cologno al Serio | 769.99 mi (1,239.18 km) |
| Caerfyrddin to Cologno Monzese | 756.72 mi (1,217.82 km) |
| Caerfyrddin to Colorno | 824.32 mi (1,326.61 km) |
| Caerfyrddin to Comacchio | 902.37 mi (1,452.22 km) |
| Caerfyrddin to Comiso | 1,381.87 mi (2,223.90 km) |
| Caerfyrddin to Como | 737.14 mi (1,186.30 km) |
| Caerfyrddin to Concordia Sagittaria | 884.12 mi (1,422.85 km) |
| Caerfyrddin to Concorezzo | 756.14 mi (1,216.89 km) |
| Caerfyrddin to Conegliano | 857.52 mi (1,380.04 km) |
| Caerfyrddin to Conselice | 897.18 mi (1,443.87 km) |
| Caerfyrddin to Conselve | 867.37 mi (1,395.89 km) |
| Caerfyrddin to Conversano | 1,260.40 mi (2,028.41 km) |
| Caerfyrddin to Copertino | 1,329.21 mi (2,139.15 km) |
| Caerfyrddin to Copparo | 880.34 mi (1,416.77 km) |
