| Round Rock to Pandino | 5,491.15 mi (8,837.16 km) |
| Round Rock to Paola | 6,002.41 mi (9,659.95 km) |
| Round Rock to Parabiago | 5,460.72 mi (8,788.18 km) |
| Round Rock to Parabita | 6,060.47 mi (9,753.38 km) |
| Round Rock to Parma | 5,545.61 mi (8,924.80 km) |
| Round Rock to Partanna | 5,934.56 mi (9,550.76 km) |
| Round Rock to Partinico | 5,931.51 mi (9,545.84 km) |
| Round Rock to Pasian di Prato | 5,611.23 mi (9,030.40 km) |
| Round Rock to Paterno | 6,029.52 mi (9,703.58 km) |
| Round Rock to Patti | 6,008.42 mi (9,669.62 km) |
| Round Rock to Paullo | 5,484.43 mi (8,826.33 km) |
| Round Rock to Pavia | 5,483.16 mi (8,824.29 km) |
| Round Rock to Pavullo nel Frignano | 5,584.33 mi (8,987.11 km) |
| Round Rock to Pedara | 6,034.70 mi (9,711.90 km) |
| Round Rock to Pellezzano | 5,891.85 mi (9,482.01 km) |
