| Marietta to Opwijk | 4,390.67 mi (7,066.10 km) |
| Marietta to Ostend | 4,333.09 mi (6,973.44 km) |
| Marietta to Oud-Heverlee | 4,413.66 mi (7,103.09 km) |
| Marietta to Oud-Turnhout | 4,413.56 mi (7,102.95 km) |
| Marietta to Oudenaarde | 4,370.12 mi (7,033.03 km) |
| Marietta to Oudenburg | 4,337.41 mi (6,980.38 km) |
| Marietta to Oupeye | 4,456.32 mi (7,171.76 km) |
| Marietta to Overijse | 4,409.60 mi (7,096.56 km) |
| Marietta to Overpelt | 4,433.52 mi (7,135.05 km) |
| Marietta to Paal | 4,428.52 mi (7,127.01 km) |
| Marietta to Peer | 4,437.24 mi (7,141.05 km) |
| Marietta to Pepinster | 4,467.18 mi (7,189.23 km) |
| Marietta to Peruwelz | 4,378.02 mi (7,045.75 km) |
| Marietta to Perwez | 4,425.20 mi (7,121.67 km) |
| Marietta to Philippeville | 4,425.76 mi (7,122.57 km) |
