| Griffith to Opwijk | 4,137.51 mi (6,658.68 km) |
| Griffith to Ostend | 4,081.00 mi (6,567.73 km) |
| Griffith to Oud-Heverlee | 4,160.35 mi (6,695.44 km) |
| Griffith to Oud-Turnhout | 4,155.28 mi (6,687.28 km) |
| Griffith to Oudenaarde | 4,119.52 mi (6,629.73 km) |
| Griffith to Oudenburg | 4,085.48 mi (6,574.94 km) |
| Griffith to Oupeye | 4,201.43 mi (6,761.54 km) |
| Griffith to Overijse | 4,157.08 mi (6,690.17 km) |
| Griffith to Overpelt | 4,174.93 mi (6,718.90 km) |
| Griffith to Paal | 4,172.09 mi (6,714.34 km) |
| Griffith to Peer | 4,179.27 mi (6,725.88 km) |
| Griffith to Pepinster | 4,213.00 mi (6,780.17 km) |
| Griffith to Peruwelz | 4,130.37 mi (6,647.18 km) |
| Griffith to Perwez | 4,173.28 mi (6,716.25 km) |
| Griffith to Philippeville | 4,178.19 mi (6,724.15 km) |
