| Green River to Opwijk | 4,905.35 mi (7,894.40 km) |
| Green River to Ostend | 4,853.06 mi (7,810.25 km) |
| Green River to Oud-Heverlee | 4,926.95 mi (7,929.16 km) |
| Green River to Oud-Turnhout | 4,913.71 mi (7,907.86 km) |
| Green River to Oudenaarde | 4,892.40 mi (7,873.55 km) |
| Green River to Oudenburg | 4,857.62 mi (7,817.58 km) |
| Green River to Oupeye | 4,963.58 mi (7,988.11 km) |
| Green River to Overijse | 4,925.14 mi (7,926.25 km) |
| Green River to Overpelt | 4,931.98 mi (7,937.26 km) |
| Green River to Paal | 4,932.94 mi (7,938.80 km) |
| Green River to Peer | 4,937.17 mi (7,945.61 km) |
| Green River to Pepinster | 4,975.86 mi (8,007.88 km) |
| Green River to Peruwelz | 4,907.63 mi (7,898.06 km) |
| Green River to Perwez | 4,941.65 mi (7,952.82 km) |
| Green River to Philippeville | 4,953.58 mi (7,972.02 km) |
