| Gudensberg to Opwijk | 225.47 mi (362.86 km) |
| Gudensberg to Ostend | 279.03 mi (449.05 km) |
| Gudensberg to Oud-Heverlee | 205.72 mi (331.07 km) |
| Gudensberg to Oud-Turnhout | 189.77 mi (305.40 km) |
| Gudensberg to Oudenaarde | 251.65 mi (404.99 km) |
| Gudensberg to Oudenburg | 275.65 mi (443.62 km) |
| Gudensberg to Oupeye | 165.37 mi (266.13 km) |
| Gudensberg to Overijse | 212.01 mi (341.20 km) |
| Gudensberg to Overpelt | 171.01 mi (275.21 km) |
| Gudensberg to Paal | 182.17 mi (293.17 km) |
| Gudensberg to Peer | 169.58 mi (272.92 km) |
| Gudensberg to Pepinster | 160.51 mi (258.32 km) |
| Gudensberg to Peruwelz | 256.38 mi (412.61 km) |
| Gudensberg to Perwez | 202.02 mi (325.12 km) |
| Gudensberg to Philippeville | 221.46 mi (356.40 km) |
