| San Mateo to Opwijk | 5,516.07 mi (8,877.25 km) |
| San Mateo to Ostend | 5,466.68 mi (8,797.77 km) |
| San Mateo to Oud-Heverlee | 5,536.70 mi (8,910.46 km) |
| San Mateo to Oud-Turnhout | 5,519.90 mi (8,883.43 km) |
| San Mateo to Oudenaarde | 5,505.67 mi (8,860.52 km) |
| San Mateo to Oudenburg | 5,471.19 mi (8,805.02 km) |
| San Mateo to Oupeye | 5,570.58 mi (8,964.98 km) |
| San Mateo to Overijse | 5,535.60 mi (8,908.68 km) |
| San Mateo to Overpelt | 5,537.19 mi (8,911.24 km) |
| San Mateo to Paal | 5,539.89 mi (8,915.60 km) |
| San Mateo to Peer | 5,542.67 mi (8,920.07 km) |
| San Mateo to Pepinster | 5,582.97 mi (8,984.92 km) |
| San Mateo to Peruwelz | 5,522.65 mi (8,887.84 km) |
| San Mateo to Perwez | 5,551.95 mi (8,934.99 km) |
| San Mateo to Philippeville | 5,566.92 mi (8,959.09 km) |
