| Cwmbran to Collegno | 664.27 mi (1,069.04 km) |
| Cwmbran to Cologno al Serio | 714.96 mi (1,150.62 km) |
| Cwmbran to Cologno Monzese | 702.04 mi (1,129.82 km) |
| Cwmbran to Colorno | 769.54 mi (1,238.46 km) |
| Cwmbran to Comacchio | 846.80 mi (1,362.79 km) |
| Cwmbran to Comiso | 1,331.23 mi (2,142.40 km) |
| Cwmbran to Como | 682.25 mi (1,097.98 km) |
| Cwmbran to Concordia Sagittaria | 827.57 mi (1,331.84 km) |
| Cwmbran to Concorezzo | 701.34 mi (1,128.70 km) |
| Cwmbran to Conegliano | 801.05 mi (1,289.17 km) |
| Cwmbran to Conselice | 841.94 mi (1,354.97 km) |
| Cwmbran to Conselve | 811.51 mi (1,306.00 km) |
| Cwmbran to Conversano | 1,205.16 mi (1,939.52 km) |
| Cwmbran to Copertino | 1,273.97 mi (2,050.26 km) |
| Cwmbran to Copparo | 824.77 mi (1,327.33 km) |
