| Rhondda to Cavaillon | 664.85 mi (1,069.97 km) |
| Rhondda to Cebazat | 497.56 mi (800.75 km) |
| Rhondda to Cenon | 485.36 mi (781.10 km) |
| Rhondda to Cergy | 300.23 mi (483.17 km) |
| Rhondda to Cernay | 540.81 mi (870.35 km) |
| Rhondda to Cesson | 339.80 mi (546.85 km) |
| Rhondda to Cesson-Sevigne | 254.62 mi (409.77 km) |
| Rhondda to Cestas | 491.12 mi (790.38 km) |
| Rhondda to Chalette-sur-Loing | 370.28 mi (595.90 km) |
| Rhondda to Challans | 336.74 mi (541.93 km) |
| Rhondda to Chalon-sur-Saone | 500.48 mi (805.45 km) |
| Rhondda to Chalons-en-Champagne | 389.31 mi (626.53 km) |
| Rhondda to Chamalieres | 499.98 mi (804.64 km) |
| Rhondda to Chambery | 596.00 mi (959.17 km) |
| Rhondda to Chambly | 301.40 mi (485.05 km) |
