| Waukesha to Oerlinghausen | 4,222.71 mi (6,795.80 km) |
| Waukesha to Oestrich-Winkel | 4,275.21 mi (6,880.28 km) |
| Waukesha to Offenburg | 4,333.20 mi (6,973.62 km) |
| Waukesha to Oftersheim | 4,321.48 mi (6,954.76 km) |
| Waukesha to Ohrdruf | 4,340.75 mi (6,985.76 km) |
| Waukesha to Ohringen | 4,361.94 mi (7,019.87 km) |
| Waukesha to Olbernhau | 4,438.76 mi (7,143.49 km) |
| Waukesha to Olching | 4,469.62 mi (7,193.15 km) |
| Waukesha to Oldenburg | 4,161.87 mi (6,697.88 km) |
| Waukesha to Oldenburg in Holstein | 4,208.29 mi (6,772.59 km) |
| Waukesha to Olfen | 4,186.69 mi (6,737.83 km) |
| Waukesha to Olpe | 4,229.65 mi (6,806.96 km) |
| Waukesha to Olsberg | 4,240.08 mi (6,823.75 km) |
| Waukesha to Oranienburg | 4,348.91 mi (6,998.90 km) |
| Waukesha to Ortenberg | 4,299.59 mi (6,919.52 km) |
