| Wauwatosa to Opole | 4,586.20 mi (7,380.77 km) |
| Wauwatosa to Orzesze | 4,636.72 mi (7,462.07 km) |
| Wauwatosa to Osowa | 4,438.53 mi (7,143.13 km) |
| Wauwatosa to Ostroda | 4,517.30 mi (7,269.88 km) |
| Wauwatosa to Ostroleka | 4,595.80 mi (7,396.23 km) |
| Wauwatosa to Ostrow Mazowiecka | 4,618.41 mi (7,432.62 km) |
| Wauwatosa to Ostrow Wielkopolski | 4,538.90 mi (7,304.65 km) |
| Wauwatosa to Ostrowiec Swietokrzyski | 4,688.49 mi (7,545.39 km) |
| Wauwatosa to Ostrzeszow | 4,553.02 mi (7,327.37 km) |
| Wauwatosa to Oswiecim | 4,657.59 mi (7,495.67 km) |
| Wauwatosa to Otwock | 4,629.80 mi (7,450.94 km) |
| Wauwatosa to Ozarow Mazowiecki | 4,610.38 mi (7,419.70 km) |
| Wauwatosa to Ozimek | 4,595.30 mi (7,395.42 km) |
| Wauwatosa to Ozorkow | 4,572.88 mi (7,359.34 km) |
| Wauwatosa to Pabianice | 4,590.32 mi (7,387.40 km) |
