| Merthyr Tudful to Potenza Picena | 977.39 mi (1,572.96 km) |
| Merthyr Tudful to Pozzallo | 1,366.95 mi (2,199.89 km) |
| Merthyr Tudful to Pozzuoli | 1,120.55 mi (1,803.36 km) |
| Merthyr Tudful to Prato | 861.15 mi (1,385.88 km) |
| Merthyr Tudful to Preganziol | 826.67 mi (1,330.40 km) |
| Merthyr Tudful to Priolo Gargallo | 1,353.17 mi (2,177.71 km) |
| Merthyr Tudful to Priverno | 1,054.83 mi (1,697.58 km) |
| Merthyr Tudful to Pulsano | 1,258.66 mi (2,025.62 km) |
| Merthyr Tudful to Putignano | 1,227.18 mi (1,974.96 km) |
| Merthyr Tudful to Qualiano | 1,116.71 mi (1,797.18 km) |
| Merthyr Tudful to Quarrata | 858.72 mi (1,381.97 km) |
| Merthyr Tudful to Quartu Sant'Elena | 1,053.33 mi (1,695.18 km) |
| Merthyr Tudful to Quartucciu | 1,052.44 mi (1,693.73 km) |
| Merthyr Tudful to Quattro Castella | 802.77 mi (1,291.93 km) |
| Merthyr Tudful to Quinto di Treviso | 822.03 mi (1,322.93 km) |
