| Merthyr Tudful to Grigiskes | 1,187.20 mi (1,910.61 km) |
| Merthyr Tudful to Ignalina | 1,228.39 mi (1,976.91 km) |
| Merthyr Tudful to Jonava | 1,154.14 mi (1,857.41 km) |
| Merthyr Tudful to Joniskis | 1,130.80 mi (1,819.84 km) |
| Merthyr Tudful to Jurbarkas | 1,094.28 mi (1,761.07 km) |
| Merthyr Tudful to Kaisiadorys | 1,160.96 mi (1,868.38 km) |
| Merthyr Tudful to Kalvarija | 1,112.24 mi (1,789.98 km) |
| Merthyr Tudful to Kaunas | 1,138.53 mi (1,832.28 km) |
| Merthyr Tudful to Kazlu Ruda | 1,123.22 mi (1,807.65 km) |
| Merthyr Tudful to Kedainiai | 1,141.88 mi (1,837.69 km) |
| Merthyr Tudful to Kelme | 1,102.29 mi (1,773.96 km) |
| Merthyr Tudful to Klaipeda | 1,034.26 mi (1,664.48 km) |
| Merthyr Tudful to Kretinga | 1,038.10 mi (1,670.66 km) |
| Merthyr Tudful to Kupiskis | 1,181.92 mi (1,902.12 km) |
| Merthyr Tudful to Kursenai | 1,103.21 mi (1,775.45 km) |
