| Palo Alto to Opwijk | 5,520.98 mi (8,885.16 km) |
| Palo Alto to Ostend | 5,471.49 mi (8,805.51 km) |
| Palo Alto to Oud-Heverlee | 5,541.65 mi (8,918.42 km) |
| Palo Alto to Oud-Turnhout | 5,524.96 mi (8,891.57 km) |
| Palo Alto to Oudenaarde | 5,510.50 mi (8,868.29 km) |
| Palo Alto to Oudenburg | 5,476.00 mi (8,812.76 km) |
| Palo Alto to Oupeye | 5,575.62 mi (8,973.09 km) |
| Palo Alto to Overijse | 5,540.52 mi (8,916.60 km) |
| Palo Alto to Overpelt | 5,542.28 mi (8,919.43 km) |
| Palo Alto to Paal | 5,544.93 mi (8,923.70 km) |
| Palo Alto to Peer | 5,547.76 mi (8,928.25 km) |
| Palo Alto to Pepinster | 5,588.01 mi (8,993.03 km) |
| Palo Alto to Peruwelz | 5,527.42 mi (8,895.52 km) |
| Palo Alto to Perwez | 5,556.88 mi (8,942.93 km) |
| Palo Alto to Philippeville | 5,571.75 mi (8,966.87 km) |
