| Merthyr Tudful to Kocaali | 1,769.26 mi (2,847.34 km) |
| Merthyr Tudful to Kocaeli | 1,742.26 mi (2,803.90 km) |
| Merthyr Tudful to Konak | 1,730.90 mi (2,785.62 km) |
| Merthyr Tudful to Konakli | 2,008.94 mi (3,233.08 km) |
| Merthyr Tudful to Konya | 1,974.65 mi (3,177.88 km) |
| Merthyr Tudful to Koprukoy | 2,280.99 mi (3,670.90 km) |
| Merthyr Tudful to Korfez | 1,733.70 mi (2,790.13 km) |
| Merthyr Tudful to Korkut | 2,328.59 mi (3,747.51 km) |
| Merthyr Tudful to Kose | 2,176.65 mi (3,502.98 km) |
| Merthyr Tudful to Kovancilar | 2,247.73 mi (3,617.37 km) |
| Merthyr Tudful to Koyulhisar | 2,095.18 mi (3,371.87 km) |
| Merthyr Tudful to Kozan | 2,131.35 mi (3,430.08 km) |
| Merthyr Tudful to Kozlu | 1,791.80 mi (2,883.63 km) |
| Merthyr Tudful to Kozluk | 2,339.33 mi (3,764.78 km) |
| Merthyr Tudful to Kucuk Dalyan | 2,202.56 mi (3,544.68 km) |
