| Hemel Hempstead to Poggibonsi | 786.00 mi (1,264.94 km) |
| Hemel Hempstead to Poggio a Caiano | 764.73 mi (1,230.71 km) |
| Hemel Hempstead to Poggio Renatico | 730.06 mi (1,174.92 km) |
| Hemel Hempstead to Poggiomarino | 1,038.69 mi (1,671.61 km) |
| Hemel Hempstead to Poirino | 606.41 mi (975.92 km) |
| Hemel Hempstead to Policoro | 1,140.99 mi (1,836.25 km) |
| Hemel Hempstead to Polistena | 1,219.81 mi (1,963.10 km) |
| Hemel Hempstead to Pomezia | 926.22 mi (1,490.61 km) |
| Hemel Hempstead to Pomigliano d'Arco | 1,027.50 mi (1,653.61 km) |
| Hemel Hempstead to Pompei | 1,039.79 mi (1,673.38 km) |
| Hemel Hempstead to Ponsacco | 761.68 mi (1,225.81 km) |
| Hemel Hempstead to Pontassieve | 778.92 mi (1,253.56 km) |
| Hemel Hempstead to Ponte Buggianese | 753.25 mi (1,212.24 km) |
| Hemel Hempstead to Ponte San Pietro | 619.58 mi (997.12 km) |
| Hemel Hempstead to Pontecorvo | 974.30 mi (1,567.99 km) |
