| Merthyr Tudful to Prelouc | 831.33 mi (1,337.90 km) |
| Merthyr Tudful to Prerov | 923.76 mi (1,486.65 km) |
| Merthyr Tudful to Pribram | 771.84 mi (1,242.16 km) |
| Merthyr Tudful to Prostejov | 908.85 mi (1,462.65 km) |
| Merthyr Tudful to Rakovnik | 752.03 mi (1,210.27 km) |
| Merthyr Tudful to Ricany | 793.47 mi (1,276.97 km) |
| Merthyr Tudful to Rokycany | 753.03 mi (1,211.89 km) |
| Merthyr Tudful to Roudnice nad Labem | 769.09 mi (1,237.74 km) |
| Merthyr Tudful to Roznov pod Radhostem | 953.29 mi (1,534.17 km) |
| Merthyr Tudful to Roztoky | 779.45 mi (1,254.41 km) |
| Merthyr Tudful to Rumburk | 773.96 mi (1,245.58 km) |
| Merthyr Tudful to Rychnov nad Kneznou | 859.69 mi (1,383.53 km) |
| Merthyr Tudful to Slany | 764.90 mi (1,230.98 km) |
| Merthyr Tudful to Sokolov | 703.89 mi (1,132.81 km) |
| Merthyr Tudful to Sternberk | 911.62 mi (1,467.11 km) |
