| Quarteira to Opwijk | 1,134.49 mi (1,825.78 km) |
| Quarteira to Ostend | 1,117.63 mi (1,798.66 km) |
| Quarteira to Oud-Heverlee | 1,140.06 mi (1,834.75 km) |
| Quarteira to Oud-Turnhout | 1,174.79 mi (1,890.65 km) |
| Quarteira to Oudenaarde | 1,112.94 mi (1,791.11 km) |
| Quarteira to Oudenburg | 1,117.10 mi (1,797.79 km) |
| Quarteira to Oupeye | 1,160.66 mi (1,867.91 km) |
| Quarteira to Overijse | 1,133.74 mi (1,824.58 km) |
| Quarteira to Overpelt | 1,181.14 mi (1,900.86 km) |
| Quarteira to Paal | 1,164.95 mi (1,874.81 km) |
| Quarteira to Peer | 1,177.69 mi (1,895.30 km) |
| Quarteira to Pepinster | 1,158.35 mi (1,864.18 km) |
| Quarteira to Peruwelz | 1,093.88 mi (1,760.44 km) |
| Quarteira to Perwez | 1,132.85 mi (1,823.15 km) |
| Quarteira to Philippeville | 1,102.79 mi (1,774.78 km) |
