| Merthyr Tudful to Poggibonsi | 883.20 mi (1,421.37 km) |
| Merthyr Tudful to Poggio a Caiano | 863.17 mi (1,389.14 km) |
| Merthyr Tudful to Poggio Renatico | 834.06 mi (1,342.30 km) |
| Merthyr Tudful to Poggiomarino | 1,136.72 mi (1,829.38 km) |
| Merthyr Tudful to Poirino | 697.18 mi (1,122.00 km) |
| Merthyr Tudful to Policoro | 1,242.78 mi (2,000.05 km) |
| Merthyr Tudful to Polistena | 1,315.08 mi (2,116.42 km) |
| Merthyr Tudful to Pomezia | 1,020.90 mi (1,642.98 km) |
| Merthyr Tudful to Pomigliano d'Arco | 1,125.49 mi (1,811.29 km) |
| Merthyr Tudful to Pompei | 1,137.53 mi (1,830.67 km) |
| Merthyr Tudful to Ponsacco | 857.69 mi (1,380.31 km) |
| Merthyr Tudful to Pontassieve | 878.44 mi (1,413.71 km) |
| Merthyr Tudful to Ponte Buggianese | 850.68 mi (1,369.04 km) |
| Merthyr Tudful to Ponte San Pietro | 722.05 mi (1,162.03 km) |
| Merthyr Tudful to Pontecorvo | 1,071.95 mi (1,725.13 km) |
