| Lacey to Opwijk | 4,968.92 mi (7,996.70 km) |
| Lacey to Ostend | 4,922.59 mi (7,922.14 km) |
| Lacey to Oud-Heverlee | 4,988.50 mi (8,028.22 km) |
| Lacey to Oud-Turnhout | 4,968.80 mi (7,996.51 km) |
| Lacey to Oudenaarde | 4,960.90 mi (7,983.80 km) |
| Lacey to Oudenburg | 4,927.01 mi (7,929.26 km) |
| Lacey to Oupeye | 5,019.69 mi (8,078.40 km) |
| Lacey to Overijse | 4,988.03 mi (8,027.46 km) |
| Lacey to Overpelt | 4,985.08 mi (8,022.71 km) |
| Lacey to Paal | 4,989.25 mi (8,029.43 km) |
| Lacey to Peer | 4,990.77 mi (8,031.87 km) |
| Lacey to Pepinster | 5,032.05 mi (8,098.30 km) |
| Lacey to Peruwelz | 4,979.29 mi (8,013.39 km) |
| Lacey to Perwez | 5,004.09 mi (8,053.30 km) |
| Lacey to Philippeville | 5,021.61 mi (8,081.50 km) |
