| Rhondda to Cognac | 432.54 mi (696.11 km) |
| Rhondda to Cogolin | 740.28 mi (1,191.37 km) |
| Rhondda to Colmar | 537.79 mi (865.48 km) |
| Rhondda to Colombes | 311.78 mi (501.76 km) |
| Rhondda to Colomiers | 595.26 mi (957.97 km) |
| Rhondda to Combs-la-Ville | 333.72 mi (537.07 km) |
| Rhondda to Comines | 284.35 mi (457.61 km) |
| Rhondda to Compiegne | 313.38 mi (504.33 km) |
| Rhondda to Concarneau | 259.42 mi (417.49 km) |
| Rhondda to Conde-sur-l'Escaut | 314.86 mi (506.72 km) |
| Rhondda to Conflans-Sainte-Honorine | 303.06 mi (487.74 km) |
| Rhondda to Corbas | 558.90 mi (899.46 km) |
| Rhondda to Corbeil-Essonnes | 333.50 mi (536.72 km) |
| Rhondda to Cormeilles-en-Parisis | 307.81 mi (495.37 km) |
| Rhondda to Cosne sur Loire | 406.40 mi (654.03 km) |
