| Frondenberg to Opwijk | 158.90 mi (255.72 km) |
| Frondenberg to Ostend | 209.79 mi (337.63 km) |
| Frondenberg to Oud-Heverlee | 141.36 mi (227.50 km) |
| Frondenberg to Oud-Turnhout | 120.43 mi (193.81 km) |
| Frondenberg to Oudenaarde | 185.52 mi (298.57 km) |
| Frondenberg to Oudenburg | 206.69 mi (332.63 km) |
| Frondenberg to Oupeye | 106.15 mi (170.84 km) |
| Frondenberg to Overijse | 148.01 mi (238.20 km) |
| Frondenberg to Overpelt | 102.90 mi (165.60 km) |
| Frondenberg to Paal | 116.04 mi (186.74 km) |
| Frondenberg to Peer | 102.59 mi (165.10 km) |
| Frondenberg to Pepinster | 105.30 mi (169.46 km) |
| Frondenberg to Peruwelz | 193.45 mi (311.34 km) |
| Frondenberg to Perwez | 140.91 mi (226.77 km) |
| Frondenberg to Philippeville | 165.55 mi (266.42 km) |
