| Merthyr Tudful to Ovidiu | 1,549.33 mi (2,493.40 km) |
| Merthyr Tudful to Pantelimon | 1,442.90 mi (2,322.12 km) |
| Merthyr Tudful to Pascani | 1,375.65 mi (2,213.89 km) |
| Merthyr Tudful to Pechea | 1,470.68 mi (2,366.83 km) |
| Merthyr Tudful to Pecica | 1,167.51 mi (1,878.93 km) |
| Merthyr Tudful to Petrila | 1,290.66 mi (2,077.11 km) |
| Merthyr Tudful to Petrosani | 1,289.97 mi (2,076.00 km) |
| Merthyr Tudful to Piatra Neamt | 1,369.68 mi (2,204.28 km) |
| Merthyr Tudful to Pitesti | 1,372.11 mi (2,208.20 km) |
| Merthyr Tudful to Ploiesti | 1,418.19 mi (2,282.36 km) |
| Merthyr Tudful to Podu Iloaiei | 1,399.65 mi (2,252.53 km) |
| Merthyr Tudful to Poiana Mare | 1,331.00 mi (2,142.04 km) |
| Merthyr Tudful to Poienile de sub Munte | 1,261.89 mi (2,030.82 km) |
| Merthyr Tudful to Popesti-Leordeni | 1,444.12 mi (2,324.09 km) |
| Merthyr Tudful to Pucioasa | 1,388.68 mi (2,234.87 km) |
