| Hertford to Poggibonsi | 775.78 mi (1,248.50 km) |
| Hertford to Poggio a Caiano | 754.30 mi (1,213.92 km) |
| Hertford to Poggio Renatico | 718.59 mi (1,156.46 km) |
| Hertford to Poggiomarino | 1,028.13 mi (1,654.61 km) |
| Hertford to Poirino | 597.63 mi (961.80 km) |
| Hertford to Policoro | 1,129.69 mi (1,818.06 km) |
| Hertford to Polistena | 1,209.67 mi (1,946.77 km) |
| Hertford to Pomezia | 916.35 mi (1,474.72 km) |
| Hertford to Pomigliano d'Arco | 1,016.96 mi (1,636.64 km) |
| Hertford to Pompei | 1,029.29 mi (1,656.48 km) |
| Hertford to Ponsacco | 751.71 mi (1,209.77 km) |
| Hertford to Pontassieve | 768.27 mi (1,236.42 km) |
| Hertford to Ponte Buggianese | 743.02 mi (1,195.78 km) |
| Hertford to Ponte San Pietro | 608.54 mi (979.34 km) |
| Hertford to Pontecorvo | 963.85 mi (1,551.17 km) |
