| Parkville to Oerlinghausen | 3,962.70 mi (6,377.35 km) |
| Parkville to Oestrich-Winkel | 3,991.94 mi (6,424.41 km) |
| Parkville to Offenburg | 4,033.95 mi (6,492.01 km) |
| Parkville to Oftersheim | 4,033.97 mi (6,492.04 km) |
| Parkville to Ohrdruf | 4,076.54 mi (6,560.56 km) |
| Parkville to Ohringen | 4,076.27 mi (6,560.12 km) |
| Parkville to Olbernhau | 4,183.20 mi (6,732.20 km) |
| Parkville to Olching | 4,181.31 mi (6,729.17 km) |
| Parkville to Oldenburg | 3,913.02 mi (6,297.39 km) |
| Parkville to Oldenburg in Holstein | 3,981.52 mi (6,407.64 km) |
| Parkville to Olfen | 3,919.35 mi (6,307.58 km) |
| Parkville to Olpe | 3,956.45 mi (6,367.29 km) |
| Parkville to Olsberg | 3,972.82 mi (6,393.63 km) |
| Parkville to Oranienburg | 4,114.35 mi (6,621.41 km) |
| Parkville to Ortenberg | 4,024.04 mi (6,476.06 km) |
