| Greer to Opwijk | 4,249.57 mi (6,839.02 km) |
| Greer to Ostend | 4,191.95 mi (6,746.29 km) |
| Greer to Oud-Heverlee | 4,272.54 mi (6,876.00 km) |
| Greer to Oud-Turnhout | 4,272.92 mi (6,876.60 km) |
| Greer to Oudenaarde | 4,228.80 mi (6,805.60 km) |
| Greer to Oudenburg | 4,196.24 mi (6,753.20 km) |
| Greer to Oupeye | 4,315.32 mi (6,944.83 km) |
| Greer to Overijse | 4,268.42 mi (6,869.35 km) |
| Greer to Overpelt | 4,292.88 mi (6,908.72 km) |
| Greer to Paal | 4,287.68 mi (6,900.36 km) |
| Greer to Peer | 4,296.54 mi (6,914.62 km) |
| Greer to Pepinster | 4,326.10 mi (6,962.18 km) |
| Greer to Peruwelz | 4,236.44 mi (6,817.89 km) |
| Greer to Perwez | 4,283.95 mi (6,894.35 km) |
| Greer to Philippeville | 4,284.12 mi (6,894.62 km) |
