| Rhondda to Celano | 1,033.37 mi (1,663.04 km) |
| Rhondda to Cento | 825.18 mi (1,328.00 km) |
| Rhondda to Cepagatti | 1,038.27 mi (1,670.94 km) |
| Rhondda to Ceprano | 1,058.61 mi (1,703.67 km) |
| Rhondda to Cercola | 1,122.68 mi (1,806.78 km) |
| Rhondda to Cerea | 802.12 mi (1,290.89 km) |
| Rhondda to Cerese | 791.12 mi (1,273.18 km) |
| Rhondda to Cerignola | 1,158.91 mi (1,865.09 km) |
| Rhondda to Cermenate | 700.32 mi (1,127.05 km) |
| Rhondda to Cernusco sul Naviglio | 717.73 mi (1,155.07 km) |
| Rhondda to Cerreto Guidi | 855.59 mi (1,376.94 km) |
| Rhondda to Cerro Maggiore | 699.92 mi (1,126.41 km) |
| Rhondda to Certaldo | 871.82 mi (1,403.06 km) |
| Rhondda to Cerveteri | 986.21 mi (1,587.15 km) |
| Rhondda to Cervia | 886.68 mi (1,426.97 km) |
