| Merthyr Tudful to Poljcane | 933.66 mi (1,502.58 km) |
| Merthyr Tudful to Polzela | 914.11 mi (1,471.12 km) |
| Merthyr Tudful to Postojna | 897.94 mi (1,445.10 km) |
| Merthyr Tudful to Prebold | 916.42 mi (1,474.83 km) |
| Merthyr Tudful to Preddvor | 886.58 mi (1,426.81 km) |
| Merthyr Tudful to Prevalje | 898.20 mi (1,445.52 km) |
| Merthyr Tudful to Ptuj | 941.92 mi (1,515.87 km) |
| Merthyr Tudful to Puconci | 944.18 mi (1,519.52 km) |
| Merthyr Tudful to Race | 933.00 mi (1,501.52 km) |
| Merthyr Tudful to Radece | 925.90 mi (1,490.09 km) |
| Merthyr Tudful to Radenci | 941.54 mi (1,515.26 km) |
| Merthyr Tudful to Radlje ob Dravi | 908.67 mi (1,462.37 km) |
| Merthyr Tudful to Radovljica | 875.14 mi (1,408.40 km) |
| Merthyr Tudful to Ravne na Koroskem | 900.35 mi (1,448.98 km) |
| Merthyr Tudful to Razkrizje | 955.85 mi (1,538.30 km) |
