| Baraboo to Opwijk | 4,131.20 mi (6,648.52 km) |
| Baraboo to Ostend | 4,075.36 mi (6,558.67 km) |
| Baraboo to Oud-Heverlee | 4,153.86 mi (6,685.00 km) |
| Baraboo to Oud-Turnhout | 4,146.95 mi (6,673.87 km) |
| Baraboo to Oudenaarde | 4,114.26 mi (6,621.26 km) |
| Baraboo to Oudenburg | 4,079.88 mi (6,565.94 km) |
| Baraboo to Oupeye | 4,194.14 mi (6,749.82 km) |
| Baraboo to Overijse | 4,150.90 mi (6,680.24 km) |
| Baraboo to Overpelt | 4,166.38 mi (6,705.15 km) |
| Baraboo to Paal | 4,164.38 mi (6,701.92 km) |
| Baraboo to Peer | 4,170.93 mi (6,712.46 km) |
| Baraboo to Pepinster | 4,205.93 mi (6,768.78 km) |
| Baraboo to Peruwelz | 4,126.15 mi (6,640.39 km) |
| Baraboo to Perwez | 4,167.25 mi (6,706.55 km) |
| Baraboo to Philippeville | 4,173.78 mi (6,717.04 km) |
