| Rhondda to Corato | 1,183.11 mi (1,904.02 km) |
| Rhondda to Corbetta | 704.77 mi (1,134.22 km) |
| Rhondda to Corciano | 936.42 mi (1,507.03 km) |
| Rhondda to Cordenons | 827.88 mi (1,332.34 km) |
| Rhondda to Cori | 1,032.58 mi (1,661.78 km) |
| Rhondda to Coriano | 909.04 mi (1,462.95 km) |
| Rhondda to Corigliano Calabro | 1,264.42 mi (2,034.89 km) |
| Rhondda to Corleone | 1,251.99 mi (2,014.89 km) |
| Rhondda to Cormano | 710.11 mi (1,142.81 km) |
| Rhondda to Cornaredo | 707.49 mi (1,138.60 km) |
| Rhondda to Cornate d'Adda | 716.72 mi (1,153.45 km) |
| Rhondda to Cornedo Vicentino | 789.54 mi (1,270.65 km) |
| Rhondda to Correggio | 804.88 mi (1,295.33 km) |
| Rhondda to Corridonia | 976.22 mi (1,571.07 km) |
| Rhondda to Corsico | 713.57 mi (1,148.38 km) |
