| Round Rock to Pontedera | 5,602.08 mi (9,015.67 km) |
| Round Rock to Pontinia | 5,791.96 mi (9,321.27 km) |
| Round Rock to Porcari | 5,594.46 mi (9,003.41 km) |
| Round Rock to Porcia | 5,591.70 mi (8,998.98 km) |
| Round Rock to Pordenone | 5,593.68 mi (9,002.15 km) |
| Round Rock to Portici | 5,870.45 mi (9,447.57 km) |
| Round Rock to Porto Empedocle | 5,980.50 mi (9,624.69 km) |
| Round Rock to Porto Recanati | 5,735.46 mi (9,230.33 km) |
| Round Rock to Porto Sant'Elpidio | 5,745.66 mi (9,246.74 km) |
| Round Rock to Porto Tolle | 5,620.16 mi (9,044.77 km) |
| Round Rock to Porto Torres | 5,615.14 mi (9,036.69 km) |
| Round Rock to Portoferraio | 5,621.64 mi (9,047.16 km) |
| Round Rock to Portogruaro | 5,607.52 mi (9,024.43 km) |
| Round Rock to Portomaggiore | 5,609.26 mi (9,027.23 km) |
| Round Rock to Potenza | 5,939.10 mi (9,558.06 km) |
