| Barstow to Potenza Picena | 6,203.10 mi (9,982.92 km) |
| Barstow to Pozzallo | 6,603.90 mi (10,627.95 km) |
| Barstow to Pozzuoli | 6,357.04 mi (10,230.67 km) |
| Barstow to Prato | 6,095.72 mi (9,810.11 km) |
| Barstow to Preganziol | 6,040.25 mi (9,720.85 km) |
| Barstow to Priolo Gargallo | 6,591.43 mi (10,607.88 km) |
| Barstow to Priverno | 6,291.83 mi (10,125.73 km) |
| Barstow to Pulsano | 6,483.37 mi (10,433.97 km) |
| Barstow to Putignano | 6,450.09 mi (10,380.42 km) |
| Barstow to Qualiano | 6,352.85 mi (10,223.93 km) |
| Barstow to Quarrata | 6,093.82 mi (9,807.06 km) |
| Barstow to Quartu Sant'Elena | 6,273.66 mi (10,096.48 km) |
| Barstow to Quartucciu | 6,272.78 mi (10,095.07 km) |
| Barstow to Quattro Castella | 6,035.92 mi (9,713.88 km) |
| Barstow to Quinto di Treviso | 6,035.54 mi (9,713.26 km) |
