| Rhondda to Carpentras | 652.57 mi (1,050.20 km) |
| Rhondda to Carquefou | 310.65 mi (499.95 km) |
| Rhondda to Carqueiranne | 736.26 mi (1,184.89 km) |
| Rhondda to Carrieres-sous-Poissy | 303.20 mi (487.96 km) |
| Rhondda to Carrieres-sur-Seine | 313.63 mi (504.74 km) |
| Rhondda to Carros | 731.47 mi (1,177.19 km) |
| Rhondda to Carvin | 287.45 mi (462.61 km) |
| Rhondda to Castanet-Tolosan | 604.43 mi (972.74 km) |
| Rhondda to Castelginest | 591.77 mi (952.36 km) |
| Rhondda to Castelnau-le-Lez | 647.41 mi (1,041.91 km) |
| Rhondda to Castelnaudary | 625.39 mi (1,006.47 km) |
| Rhondda to Castelsarrasin | 563.67 mi (907.14 km) |
| Rhondda to Castres | 613.10 mi (986.69 km) |
| Rhondda to Caudebec-les-Elbeuf | 253.23 mi (407.54 km) |
| Rhondda to Caudry | 314.94 mi (506.85 km) |
