| Ganderkesee to Opwijk | 234.26 mi (377.01 km) |
| Ganderkesee to Ostend | 269.41 mi (433.57 km) |
| Ganderkesee to Oud-Heverlee | 224.67 mi (361.56 km) |
| Ganderkesee to Oud-Turnhout | 192.12 mi (309.19 km) |
| Ganderkesee to Oudenaarde | 259.19 mi (417.12 km) |
| Ganderkesee to Oudenburg | 267.88 mi (431.10 km) |
| Ganderkesee to Oupeye | 202.99 mi (326.69 km) |
| Ganderkesee to Overijse | 231.26 mi (372.17 km) |
| Ganderkesee to Overpelt | 182.84 mi (294.26 km) |
| Ganderkesee to Paal | 198.99 mi (320.24 km) |
| Ganderkesee to Peer | 185.85 mi (299.10 km) |
| Ganderkesee to Pepinster | 206.67 mi (332.60 km) |
| Ganderkesee to Peruwelz | 274.39 mi (441.58 km) |
| Ganderkesee to Perwez | 230.54 mi (371.02 km) |
| Ganderkesee to Philippeville | 260.33 mi (418.96 km) |
