| Merthyr Tudful to Kromeriz | 924.65 mi (1,488.07 km) |
| Merthyr Tudful to Krupka | 747.82 mi (1,203.50 km) |
| Merthyr Tudful to Kurim | 887.83 mi (1,428.83 km) |
| Merthyr Tudful to Kutna Hora | 820.54 mi (1,320.54 km) |
| Merthyr Tudful to Kyjov | 919.59 mi (1,479.93 km) |
| Merthyr Tudful to Lanskroun | 878.71 mi (1,414.14 km) |
| Merthyr Tudful to Liberec | 798.29 mi (1,284.73 km) |
| Merthyr Tudful to Lisen | 896.46 mi (1,442.71 km) |
| Merthyr Tudful to Litomerice | 761.84 mi (1,226.06 km) |
| Merthyr Tudful to Litomysl | 866.58 mi (1,394.63 km) |
| Merthyr Tudful to Litovel | 902.68 mi (1,452.72 km) |
| Merthyr Tudful to Litvinov | 738.50 mi (1,188.50 km) |
| Merthyr Tudful to Louny | 750.33 mi (1,207.53 km) |
| Merthyr Tudful to Lovosice | 758.65 mi (1,220.92 km) |
| Merthyr Tudful to Lysa nad Labem | 797.31 mi (1,283.15 km) |
