| Royston to Poggibonsi | 786.05 mi (1,265.03 km) |
| Royston to Poggio a Caiano | 764.35 mi (1,230.10 km) |
| Royston to Poggio Renatico | 727.48 mi (1,170.77 km) |
| Royston to Poggiomarino | 1,037.98 mi (1,670.46 km) |
| Royston to Poirino | 609.36 mi (980.68 km) |
| Royston to Policoro | 1,138.68 mi (1,832.53 km) |
| Royston to Polistena | 1,219.92 mi (1,963.27 km) |
| Royston to Pomezia | 926.93 mi (1,491.75 km) |
| Royston to Pomigliano d'Arco | 1,026.83 mi (1,652.52 km) |
| Royston to Pompei | 1,039.19 mi (1,672.42 km) |
| Royston to Ponsacco | 762.25 mi (1,226.72 km) |
| Royston to Pontassieve | 778.09 mi (1,252.22 km) |
| Royston to Ponte Buggianese | 753.30 mi (1,212.31 km) |
| Royston to Ponte San Pietro | 617.98 mi (994.54 km) |
| Royston to Pontecorvo | 973.83 mi (1,567.23 km) |
