| Fort Pierce to Oerlinghausen | 4,708.45 mi (7,577.51 km) |
| Fort Pierce to Oestrich-Winkel | 4,720.84 mi (7,597.45 km) |
| Fort Pierce to Offenburg | 4,749.95 mi (7,644.30 km) |
| Fort Pierce to Oftersheim | 4,758.91 mi (7,658.73 km) |
| Fort Pierce to Ohrdruf | 4,817.43 mi (7,752.90 km) |
| Fort Pierce to Ohringen | 4,801.78 mi (7,727.71 km) |
| Fort Pierce to Olbernhau | 4,928.15 mi (7,931.09 km) |
| Fort Pierce to Olching | 4,902.87 mi (7,890.41 km) |
| Fort Pierce to Oldenburg | 4,666.94 mi (7,510.72 km) |
| Fort Pierce to Oldenburg in Holstein | 4,747.97 mi (7,641.11 km) |
| Fort Pierce to Olfen | 4,660.88 mi (7,500.97 km) |
| Fort Pierce to Olpe | 4,693.23 mi (7,553.03 km) |
| Fort Pierce to Olsberg | 4,713.44 mi (7,585.55 km) |
| Fort Pierce to Oranienburg | 4,874.00 mi (7,843.94 km) |
| Fort Pierce to Ortenberg | 4,757.91 mi (7,657.12 km) |
