| Rhondda to Chojnice | 887.10 mi (1,427.66 km) |
| Rhondda to Chojnow | 831.29 mi (1,337.84 km) |
| Rhondda to Chorzow | 973.85 mi (1,567.26 km) |
| Rhondda to Choszczno | 798.97 mi (1,285.82 km) |
| Rhondda to Chrzanow | 995.98 mi (1,602.87 km) |
| Rhondda to Ciechanow | 1,016.42 mi (1,635.76 km) |
| Rhondda to Ciechocinek | 939.39 mi (1,511.80 km) |
| Rhondda to Cieszyn | 970.13 mi (1,561.28 km) |
| Rhondda to Czarna Bialostocka | 1,123.51 mi (1,808.11 km) |
| Rhondda to Czarnkow | 847.05 mi (1,363.19 km) |
| Rhondda to Czechowice-Dziedzice | 983.07 mi (1,582.10 km) |
| Rhondda to Czeladz | 979.00 mi (1,575.55 km) |
| Rhondda to Czersk Pomorski | 904.52 mi (1,455.68 km) |
| Rhondda to Czestochowa | 973.18 mi (1,566.18 km) |
| Rhondda to Czluchow | 879.57 mi (1,415.53 km) |
