| Gerlingen to Opwijk | 263.83 mi (424.59 km) |
| Gerlingen to Ostend | 320.09 mi (515.13 km) |
| Gerlingen to Oud-Heverlee | 241.16 mi (388.11 km) |
| Gerlingen to Oud-Turnhout | 250.97 mi (403.90 km) |
| Gerlingen to Oudenaarde | 281.69 mi (453.33 km) |
| Gerlingen to Oudenburg | 315.61 mi (507.92 km) |
| Gerlingen to Oupeye | 201.76 mi (324.70 km) |
| Gerlingen to Overijse | 244.15 mi (392.92 km) |
| Gerlingen to Overpelt | 232.60 mi (374.34 km) |
| Gerlingen to Paal | 232.15 mi (373.62 km) |
| Gerlingen to Peer | 227.42 mi (366.00 km) |
| Gerlingen to Pepinster | 189.68 mi (305.26 km) |
| Gerlingen to Peruwelz | 272.29 mi (438.20 km) |
| Gerlingen to Perwez | 227.86 mi (366.70 km) |
| Gerlingen to Philippeville | 224.47 mi (361.25 km) |
