| Rhondda to Karis | 1,189.87 mi (1,914.91 km) |
| Rhondda to Karkkila | 1,217.63 mi (1,959.58 km) |
| Rhondda to Kauhajoki | 1,204.99 mi (1,939.24 km) |
| Rhondda to Kauhava | 1,250.81 mi (2,012.98 km) |
| Rhondda to Kauniainen | 1,228.04 mi (1,976.34 km) |
| Rhondda to Kemi | 1,378.79 mi (2,218.95 km) |
| Rhondda to Kemijarvi | 1,482.01 mi (2,385.07 km) |
| Rhondda to Kempele | 1,374.26 mi (2,211.66 km) |
| Rhondda to Kerava | 1,243.65 mi (2,001.46 km) |
| Rhondda to Keuruu | 1,273.92 mi (2,050.18 km) |
| Rhondda to Kiiminki | 1,388.31 mi (2,234.27 km) |
| Rhondda to Kirkkonummi | 1,215.65 mi (1,956.40 km) |
| Rhondda to Kitee | 1,436.33 mi (2,311.55 km) |
| Rhondda to Kiuruvesi | 1,366.45 mi (2,199.08 km) |
| Rhondda to Kivisto | 1,233.81 mi (1,985.62 km) |
