| Port Charlotte to Oerlinghausen | 4,802.84 mi (7,729.42 km) |
| Port Charlotte to Oestrich-Winkel | 4,817.47 mi (7,752.98 km) |
| Port Charlotte to Offenburg | 4,848.15 mi (7,802.34 km) |
| Port Charlotte to Oftersheim | 4,856.07 mi (7,815.09 km) |
| Port Charlotte to Ohrdruf | 4,912.58 mi (7,906.04 km) |
| Port Charlotte to Ohringen | 4,898.90 mi (7,884.03 km) |
| Port Charlotte to Olbernhau | 5,022.83 mi (8,083.47 km) |
| Port Charlotte to Olching | 5,000.56 mi (8,047.62 km) |
| Port Charlotte to Oldenburg | 4,760.10 mi (7,660.64 km) |
| Port Charlotte to Oldenburg in Holstein | 4,839.20 mi (7,787.95 km) |
| Port Charlotte to Olfen | 4,755.82 mi (7,653.75 km) |
| Port Charlotte to Olpe | 4,788.84 mi (7,706.89 km) |
| Port Charlotte to Olsberg | 4,808.55 mi (7,738.61 km) |
| Port Charlotte to Oranienburg | 4,966.44 mi (7,992.72 km) |
| Port Charlotte to Ortenberg | 4,853.95 mi (7,811.68 km) |
