| Rhondda to Cervignano del Friuli | 859.40 mi (1,383.07 km) |
| Rhondda to Cesa | 1,113.47 mi (1,791.96 km) |
| Rhondda to Cesano Maderno | 705.71 mi (1,135.73 km) |
| Rhondda to Cesena | 887.91 mi (1,428.95 km) |
| Rhondda to Cesenatico | 890.77 mi (1,433.55 km) |
| Rhondda to Cetraro | 1,249.36 mi (2,010.66 km) |
| Rhondda to Cherasco | 707.35 mi (1,138.37 km) |
| Rhondda to Chiampo | 789.76 mi (1,270.99 km) |
| Rhondda to Chiaravalle | 953.24 mi (1,534.09 km) |
| Rhondda to Chiari | 737.98 mi (1,187.66 km) |
| Rhondda to Chiavari | 774.15 mi (1,245.87 km) |
| Rhondda to Chieri | 687.70 mi (1,106.74 km) |
| Rhondda to Chieti | 1,042.75 mi (1,678.14 km) |
| Rhondda to Chioggia | 842.02 mi (1,355.10 km) |
| Rhondda to Chiusi | 930.11 mi (1,496.86 km) |
