| Lake Butler to Opwijk | 4,538.61 mi (7,304.18 km) |
| Lake Butler to Ostend | 4,480.98 mi (7,211.44 km) |
| Lake Butler to Oud-Heverlee | 4,561.40 mi (7,340.87 km) |
| Lake Butler to Oud-Turnhout | 4,565.22 mi (7,347.02 km) |
| Lake Butler to Oudenaarde | 4,516.33 mi (7,268.33 km) |
| Lake Butler to Oudenburg | 4,485.11 mi (7,218.09 km) |
| Lake Butler to Oupeye | 4,604.75 mi (7,410.63 km) |
| Lake Butler to Overijse | 4,556.78 mi (7,333.42 km) |
| Lake Butler to Overpelt | 4,585.15 mi (7,379.09 km) |
| Lake Butler to Paal | 4,578.52 mi (7,368.41 km) |
| Lake Butler to Peer | 4,588.35 mi (7,384.23 km) |
| Lake Butler to Pepinster | 4,614.90 mi (7,426.97 km) |
| Lake Butler to Peruwelz | 4,521.82 mi (7,277.16 km) |
| Lake Butler to Perwez | 4,571.70 mi (7,357.44 km) |
| Lake Butler to Philippeville | 4,568.82 mi (7,352.81 km) |
