| Rhondda to Castrovillari | 1,242.01 mi (1,998.83 km) |
| Rhondda to Catania | 1,327.19 mi (2,135.91 km) |
| Rhondda to Catanzaro | 1,303.48 mi (2,097.75 km) |
| Rhondda to Cattolica | 914.03 mi (1,470.99 km) |
| Rhondda to Cava de' Tirreni | 1,143.56 mi (1,840.38 km) |
| Rhondda to Cavallino | 1,290.73 mi (2,077.22 km) |
| Rhondda to Cavarzere | 837.89 mi (1,348.45 km) |
| Rhondda to Cave | 1,024.58 mi (1,648.91 km) |
| Rhondda to Cavriago | 798.92 mi (1,285.73 km) |
| Rhondda to Cavriglia | 889.13 mi (1,430.91 km) |
| Rhondda to Cazzago San Martino | 740.60 mi (1,191.87 km) |
| Rhondda to Ceccano | 1,051.29 mi (1,691.89 km) |
| Rhondda to Cecina | 864.81 mi (1,391.78 km) |
| Rhondda to Cefalu | 1,262.65 mi (2,032.04 km) |
| Rhondda to Ceglie Messapico | 1,248.33 mi (2,008.99 km) |
