| Troutdale to Opwijk | 5,047.35 mi (8,122.93 km) |
| Troutdale to Ostend | 5,000.38 mi (8,047.34 km) |
| Troutdale to Oud-Heverlee | 5,067.16 mi (8,154.81 km) |
| Troutdale to Oud-Turnhout | 5,048.03 mi (8,124.01 km) |
| Troutdale to Oudenaarde | 5,038.86 mi (8,109.26 km) |
| Troutdale to Oudenburg | 5,004.82 mi (8,054.48 km) |
| Troutdale to Oupeye | 5,098.91 mi (8,205.90 km) |
| Troutdale to Overijse | 5,066.57 mi (8,153.85 km) |
| Troutdale to Overpelt | 5,064.52 mi (8,150.55 km) |
| Troutdale to Paal | 5,068.40 mi (8,156.80 km) |
| Troutdale to Peer | 5,070.17 mi (8,159.66 km) |
| Troutdale to Pepinster | 5,111.28 mi (8,225.82 km) |
| Troutdale to Peruwelz | 5,056.98 mi (8,138.42 km) |
| Troutdale to Perwez | 5,082.69 mi (8,179.80 km) |
| Troutdale to Philippeville | 5,099.72 mi (8,207.20 km) |
