| Rhondda to Jozefow | 1,047.08 mi (1,685.10 km) |
| Rhondda to Kalisz | 917.56 mi (1,476.67 km) |
| Rhondda to Kamien Pomorski | 774.89 mi (1,247.06 km) |
| Rhondda to Kamienna Gora | 841.57 mi (1,354.38 km) |
| Rhondda to Karczew | 1,048.25 mi (1,687.00 km) |
| Rhondda to Kartuzy | 914.94 mi (1,472.46 km) |
| Rhondda to Katowice | 977.26 mi (1,572.75 km) |
| Rhondda to Kedzierzyn-Kozle | 940.90 mi (1,514.23 km) |
| Rhondda to Kepno | 918.49 mi (1,478.17 km) |
| Rhondda to Ketrzyn | 1,043.21 mi (1,678.88 km) |
| Rhondda to Kety | 992.33 mi (1,597.00 km) |
| Rhondda to Kielce | 1,036.80 mi (1,668.56 km) |
| Rhondda to Kielczow | 885.89 mi (1,425.70 km) |
| Rhondda to Klobuck | 963.70 mi (1,550.92 km) |
| Rhondda to Klodzko | 873.15 mi (1,405.20 km) |
