| Holyhead to Carmignano | 966.82 mi (1,555.95 km) |
| Holyhead to Carovigno | 1,354.85 mi (2,180.43 km) |
| Holyhead to Carpenedolo | 869.49 mi (1,399.31 km) |
| Holyhead to Carpi | 913.52 mi (1,470.16 km) |
| Holyhead to Carrara | 923.03 mi (1,485.48 km) |
| Holyhead to Carugate | 822.86 mi (1,324.26 km) |
| Holyhead to Casal di Principe | 1,217.13 mi (1,958.78 km) |
| Holyhead to Casale Monferrato | 814.98 mi (1,311.58 km) |
| Holyhead to Casale sul Sile | 926.00 mi (1,490.25 km) |
| Holyhead to Casalecchio di Reno | 942.09 mi (1,516.14 km) |
| Holyhead to Casalgrande | 918.36 mi (1,477.95 km) |
| Holyhead to Casalmaggiore | 887.48 mi (1,428.26 km) |
| Holyhead to Casalnuovo di Napoli | 1,229.65 mi (1,978.92 km) |
| Holyhead to Casalpusterlengo | 852.04 mi (1,371.22 km) |
| Holyhead to Casaluce | 1,220.23 mi (1,963.77 km) |
