| Willstatt to Opwijk | 235.63 mi (379.20 km) |
| Willstatt to Ostend | 288.83 mi (464.83 km) |
| Willstatt to Oud-Heverlee | 214.23 mi (344.77 km) |
| Willstatt to Oud-Turnhout | 231.37 mi (372.35 km) |
| Willstatt to Oudenaarde | 249.54 mi (401.60 km) |
| Willstatt to Oudenburg | 284.27 mi (457.49 km) |
| Willstatt to Oupeye | 180.48 mi (290.46 km) |
| Willstatt to Overijse | 215.85 mi (347.38 km) |
| Willstatt to Overpelt | 215.26 mi (346.43 km) |
| Willstatt to Paal | 211.00 mi (339.58 km) |
| Willstatt to Peer | 209.50 mi (337.15 km) |
| Willstatt to Pepinster | 168.11 mi (270.54 km) |
| Willstatt to Peruwelz | 236.65 mi (380.86 km) |
| Willstatt to Perwez | 199.35 mi (320.83 km) |
| Willstatt to Philippeville | 189.17 mi (304.43 km) |
