| Gerstetten to Opwijk | 306.49 mi (493.24 km) |
| Gerstetten to Ostend | 363.27 mi (584.63 km) |
| Gerstetten to Oud-Heverlee | 283.64 mi (456.47 km) |
| Gerstetten to Oud-Turnhout | 291.03 mi (468.37 km) |
| Gerstetten to Oudenaarde | 325.25 mi (523.44 km) |
| Gerstetten to Oudenburg | 358.83 mi (577.49 km) |
| Gerstetten to Oupeye | 243.02 mi (391.11 km) |
| Gerstetten to Overijse | 286.97 mi (461.83 km) |
| Gerstetten to Overpelt | 272.07 mi (437.86 km) |
| Gerstetten to Paal | 272.97 mi (439.30 km) |
| Gerstetten to Peer | 267.18 mi (429.99 km) |
| Gerstetten to Pepinster | 231.23 mi (372.12 km) |
| Gerstetten to Peruwelz | 316.61 mi (509.53 km) |
| Gerstetten to Perwez | 270.86 mi (435.91 km) |
| Gerstetten to Philippeville | 268.91 mi (432.77 km) |
