| Okemos to Opwijk | 3,968.78 mi (6,387.13 km) |
| Okemos to Ostend | 3,912.11 mi (6,295.94 km) |
| Okemos to Oud-Heverlee | 3,991.65 mi (6,423.94 km) |
| Okemos to Oud-Turnhout | 3,987.06 mi (6,416.55 km) |
| Okemos to Oudenaarde | 3,950.53 mi (6,357.77 km) |
| Okemos to Oudenburg | 3,916.58 mi (6,303.13 km) |
| Okemos to Oupeye | 4,032.91 mi (6,490.34 km) |
| Okemos to Overijse | 3,988.30 mi (6,418.54 km) |
| Okemos to Overpelt | 4,006.75 mi (6,448.24 km) |
| Okemos to Paal | 4,003.70 mi (6,443.33 km) |
| Okemos to Peer | 4,011.03 mi (6,455.13 km) |
| Okemos to Pepinster | 4,044.42 mi (6,508.87 km) |
| Okemos to Peruwelz | 3,961.12 mi (6,374.80 km) |
| Okemos to Perwez | 4,004.46 mi (6,444.56 km) |
| Okemos to Philippeville | 4,008.98 mi (6,451.82 km) |
