| Imperial to Oerlinghausen | 5,678.85 mi (9,139.23 km) |
| Imperial to Oestrich-Winkel | 5,755.11 mi (9,261.96 km) |
| Imperial to Offenburg | 5,828.19 mi (9,379.56 km) |
| Imperial to Oftersheim | 5,804.43 mi (9,341.33 km) |
| Imperial to Ohrdruf | 5,797.26 mi (9,329.78 km) |
| Imperial to Ohringen | 5,841.57 mi (9,401.10 km) |
| Imperial to Olbernhau | 5,881.56 mi (9,465.46 km) |
| Imperial to Olching | 5,948.60 mi (9,573.35 km) |
| Imperial to Oldenburg | 5,607.69 mi (9,024.70 km) |
| Imperial to Oldenburg in Holstein | 5,626.14 mi (9,054.40 km) |
| Imperial to Olfen | 5,652.35 mi (9,096.59 km) |
| Imperial to Olpe | 5,700.20 mi (9,173.58 km) |
| Imperial to Olsberg | 5,703.70 mi (9,179.22 km) |
| Imperial to Oranienburg | 5,770.17 mi (9,286.19 km) |
| Imperial to Ortenberg | 5,770.27 mi (9,286.35 km) |
