| Giurgiu to Opwijk | 1,123.73 mi (1,808.47 km) |
| Giurgiu to Ostend | 1,181.41 mi (1,901.29 km) |
| Giurgiu to Oud-Heverlee | 1,100.88 mi (1,771.69 km) |
| Giurgiu to Oud-Turnhout | 1,098.46 mi (1,767.80 km) |
| Giurgiu to Oudenaarde | 1,145.77 mi (1,843.94 km) |
| Giurgiu to Oudenburg | 1,177.23 mi (1,894.58 km) |
| Giurgiu to Oupeye | 1,057.63 mi (1,702.09 km) |
| Giurgiu to Overijse | 1,105.41 mi (1,778.99 km) |
| Giurgiu to Overpelt | 1,078.49 mi (1,735.66 km) |
| Giurgiu to Paal | 1,084.39 mi (1,745.16 km) |
| Giurgiu to Peer | 1,075.02 mi (1,730.09 km) |
| Giurgiu to Pepinster | 1,047.33 mi (1,685.51 km) |
| Giurgiu to Peruwelz | 1,140.32 mi (1,835.17 km) |
| Giurgiu to Perwez | 1,090.40 mi (1,754.83 km) |
| Giurgiu to Philippeville | 1,093.48 mi (1,759.79 km) |
