| Royston to Pontedera | 759.69 mi (1,222.60 km) |
| Royston to Pontinia | 957.84 mi (1,541.50 km) |
| Royston to Porcari | 749.30 mi (1,205.88 km) |
| Royston to Porcia | 708.69 mi (1,140.53 km) |
| Royston to Pordenone | 710.65 mi (1,143.69 km) |
| Royston to Portici | 1,030.38 mi (1,658.24 km) |
| Royston to Porto Empedocle | 1,213.02 mi (1,952.17 km) |
| Royston to Porto Recanati | 868.36 mi (1,397.49 km) |
| Royston to Porto Sant'Elpidio | 879.74 mi (1,415.81 km) |
| Royston to Porto Tolle | 746.21 mi (1,200.91 km) |
| Royston to Porto Torres | 870.82 mi (1,401.45 km) |
| Royston to Portoferraio | 798.44 mi (1,284.97 km) |
| Royston to Portogruaro | 724.87 mi (1,166.57 km) |
| Royston to Portomaggiore | 741.28 mi (1,192.97 km) |
| Royston to Potenza | 1,086.91 mi (1,749.22 km) |
