| Cedarburg to Oerlinghausen | 4,199.29 mi (6,758.11 km) |
| Cedarburg to Oestrich-Winkel | 4,251.98 mi (6,842.90 km) |
| Cedarburg to Offenburg | 4,310.13 mi (6,936.48 km) |
| Cedarburg to Oftersheim | 4,298.29 mi (6,917.43 km) |
| Cedarburg to Ohrdruf | 4,317.35 mi (6,948.11 km) |
| Cedarburg to Ohringen | 4,338.73 mi (6,982.51 km) |
| Cedarburg to Olbernhau | 4,415.28 mi (7,105.71 km) |
| Cedarburg to Olching | 4,446.41 mi (7,155.81 km) |
| Cedarburg to Oldenburg | 4,138.38 mi (6,660.07 km) |
| Cedarburg to Oldenburg in Holstein | 4,184.65 mi (6,734.55 km) |
| Cedarburg to Olfen | 4,163.34 mi (6,700.25 km) |
| Cedarburg to Olpe | 4,206.34 mi (6,769.45 km) |
| Cedarburg to Olsberg | 4,216.72 mi (6,786.15 km) |
| Cedarburg to Oranienburg | 4,325.31 mi (6,960.91 km) |
| Cedarburg to Ortenberg | 4,276.29 mi (6,882.02 km) |
