| Holyhead to Cabestany | 812.54 mi (1,307.65 km) |
| Holyhead to Cabries | 820.50 mi (1,320.47 km) |
| Holyhead to Cachan | 434.27 mi (698.89 km) |
| Holyhead to Caen | 339.55 mi (546.45 km) |
| Holyhead to Cagnes-sur-Mer | 855.14 mi (1,376.22 km) |
| Holyhead to Cahors | 671.01 mi (1,079.88 km) |
| Holyhead to Calais | 319.78 mi (514.64 km) |
| Holyhead to Caluire-et-Cuire | 669.72 mi (1,077.81 km) |
| Holyhead to Cambrai | 399.86 mi (643.51 km) |
| Holyhead to Canet-en-Roussillon | 812.21 mi (1,307.13 km) |
| Holyhead to Cannes | 857.74 mi (1,380.40 km) |
| Holyhead to Canteleu | 361.47 mi (581.73 km) |
| Holyhead to Capbreton | 683.65 mi (1,100.23 km) |
| Holyhead to Carcassonne | 767.28 mi (1,234.82 km) |
| Holyhead to Carmaux | 710.09 mi (1,142.78 km) |
