| Beaver Dam to Oerlinghausen | 4,220.49 mi (6,792.23 km) |
| Beaver Dam to Oestrich-Winkel | 4,274.59 mi (6,879.28 km) |
| Beaver Dam to Offenburg | 4,333.67 mi (6,974.38 km) |
| Beaver Dam to Oftersheim | 4,321.12 mi (6,954.17 km) |
| Beaver Dam to Ohrdruf | 4,338.69 mi (6,982.45 km) |
| Beaver Dam to Ohringen | 4,361.40 mi (7,018.99 km) |
| Beaver Dam to Olbernhau | 4,435.98 mi (7,139.02 km) |
| Beaver Dam to Olching | 4,469.14 mi (7,192.39 km) |
| Beaver Dam to Oldenburg | 4,158.94 mi (6,693.17 km) |
| Beaver Dam to Oldenburg in Holstein | 4,203.77 mi (6,765.31 km) |
| Beaver Dam to Olfen | 4,185.04 mi (6,735.17 km) |
| Beaver Dam to Olpe | 4,228.36 mi (6,804.89 km) |
| Beaver Dam to Olsberg | 4,238.35 mi (6,820.97 km) |
| Beaver Dam to Oranienburg | 4,344.76 mi (6,992.22 km) |
| Beaver Dam to Ortenberg | 4,298.39 mi (6,917.59 km) |
