| Merthyr Tudful to Pontedera | 855.40 mi (1,376.64 km) |
| Merthyr Tudful to Pontinia | 1,053.02 mi (1,694.67 km) |
| Merthyr Tudful to Porcari | 846.03 mi (1,361.55 km) |
| Merthyr Tudful to Porcia | 826.96 mi (1,330.86 km) |
| Merthyr Tudful to Pordenone | 828.93 mi (1,334.03 km) |
| Merthyr Tudful to Portici | 1,128.38 mi (1,815.95 km) |
| Merthyr Tudful to Porto Empedocle | 1,293.58 mi (2,081.82 km) |
| Merthyr Tudful to Porto Recanati | 976.15 mi (1,570.96 km) |
| Merthyr Tudful to Porto Sant'Elpidio | 987.00 mi (1,588.42 km) |
| Merthyr Tudful to Porto Tolle | 857.32 mi (1,379.72 km) |
| Merthyr Tudful to Porto Torres | 937.78 mi (1,509.21 km) |
| Merthyr Tudful to Portoferraio | 887.48 mi (1,428.26 km) |
| Merthyr Tudful to Portogruaro | 842.75 mi (1,356.28 km) |
| Merthyr Tudful to Portomaggiore | 848.80 mi (1,366.02 km) |
| Merthyr Tudful to Potenza | 1,189.70 mi (1,914.63 km) |
