| Forest Lake to Opwijk | 4,161.23 mi (6,696.86 km) |
| Forest Lake to Ostend | 4,106.34 mi (6,608.52 km) |
| Forest Lake to Oud-Heverlee | 4,183.64 mi (6,732.92 km) |
| Forest Lake to Oud-Turnhout | 4,174.68 mi (6,718.50 km) |
| Forest Lake to Oudenaarde | 4,145.52 mi (6,671.56 km) |
| Forest Lake to Oudenburg | 4,110.89 mi (6,615.83 km) |
| Forest Lake to Oupeye | 4,222.89 mi (6,796.09 km) |
| Forest Lake to Overijse | 4,181.04 mi (6,728.73 km) |
| Forest Lake to Overpelt | 4,193.82 mi (6,749.30 km) |
| Forest Lake to Paal | 4,192.74 mi (6,747.57 km) |
| Forest Lake to Peer | 4,198.59 mi (6,756.97 km) |
| Forest Lake to Pepinster | 4,234.88 mi (6,815.38 km) |
| Forest Lake to Peruwelz | 4,158.53 mi (6,692.51 km) |
| Forest Lake to Perwez | 4,197.50 mi (6,755.22 km) |
| Forest Lake to Philippeville | 4,205.78 mi (6,768.56 km) |
