| Wauwatosa to Opwijk | 4,087.91 mi (6,578.86 km) |
| Wauwatosa to Ostend | 4,031.76 mi (6,488.49 km) |
| Wauwatosa to Oud-Heverlee | 4,110.67 mi (6,615.48 km) |
| Wauwatosa to Oud-Turnhout | 4,104.57 mi (6,605.67 km) |
| Wauwatosa to Oudenaarde | 4,070.50 mi (6,550.84 km) |
| Wauwatosa to Oudenburg | 4,036.26 mi (6,495.74 km) |
| Wauwatosa to Oupeye | 4,151.31 mi (6,680.89 km) |
| Wauwatosa to Overijse | 4,107.57 mi (6,610.49 km) |
| Wauwatosa to Overpelt | 4,124.11 mi (6,637.11 km) |
| Wauwatosa to Paal | 4,121.73 mi (6,633.28 km) |
| Wauwatosa to Peer | 4,128.56 mi (6,644.28 km) |
| Wauwatosa to Pepinster | 4,163.01 mi (6,699.71 km) |
| Wauwatosa to Peruwelz | 4,081.93 mi (6,569.24 km) |
| Wauwatosa to Perwez | 4,123.86 mi (6,636.71 km) |
| Wauwatosa to Philippeville | 4,129.67 mi (6,646.05 km) |
