| Porthcawl to Collegno | 679.75 mi (1,093.96 km) |
| Porthcawl to Cologno al Serio | 734.01 mi (1,181.27 km) |
| Porthcawl to Cologno Monzese | 720.53 mi (1,159.57 km) |
| Porthcawl to Colorno | 788.16 mi (1,268.43 km) |
| Porthcawl to Comacchio | 866.75 mi (1,394.90 km) |
| Porthcawl to Comiso | 1,344.58 mi (2,163.89 km) |
| Porthcawl to Como | 701.06 mi (1,128.25 km) |
| Porthcawl to Concordia Sagittaria | 849.66 mi (1,367.40 km) |
| Porthcawl to Concorezzo | 720.01 mi (1,158.74 km) |
| Porthcawl to Conegliano | 822.92 mi (1,324.37 km) |
| Porthcawl to Conselice | 861.31 mi (1,386.14 km) |
| Porthcawl to Conselve | 832.01 mi (1,338.99 km) |
| Porthcawl to Conversano | 1,224.48 mi (1,970.61 km) |
| Porthcawl to Copertino | 1,293.28 mi (2,081.34 km) |
| Porthcawl to Copparo | 844.72 mi (1,359.45 km) |
