| Monrovia to Opwijk | 5,587.33 mi (8,991.94 km) |
| Monrovia to Ostend | 5,535.60 mi (8,908.69 km) |
| Monrovia to Oud-Heverlee | 5,608.74 mi (9,026.40 km) |
| Monrovia to Oud-Turnhout | 5,594.69 mi (9,003.79 km) |
| Monrovia to Oudenaarde | 5,574.90 mi (8,971.94 km) |
| Monrovia to Oudenburg | 5,540.15 mi (8,916.01 km) |
| Monrovia to Oupeye | 5,644.80 mi (9,084.42 km) |
| Monrovia to Overijse | 5,607.08 mi (9,023.73 km) |
| Monrovia to Overpelt | 5,612.75 mi (9,032.85 km) |
| Monrovia to Paal | 5,614.11 mi (9,035.04 km) |
| Monrovia to Peer | 5,618.02 mi (9,041.32 km) |
| Monrovia to Pepinster | 5,657.12 mi (9,104.25 km) |
| Monrovia to Peruwelz | 5,590.50 mi (8,997.05 km) |
| Monrovia to Perwez | 5,623.57 mi (9,050.27 km) |
| Monrovia to Philippeville | 5,636.16 mi (9,070.52 km) |
