| Oskaloosa to Opwijk | 4,342.27 mi (6,988.21 km) |
| Oskaloosa to Ostend | 4,286.42 mi (6,898.33 km) |
| Oskaloosa to Oud-Heverlee | 4,364.95 mi (7,024.70 km) |
| Oskaloosa to Oud-Turnhout | 4,358.06 mi (7,013.61 km) |
| Oskaloosa to Oudenaarde | 4,325.31 mi (6,960.91 km) |
| Oskaloosa to Oudenburg | 4,290.94 mi (6,905.60 km) |
| Oskaloosa to Oupeye | 4,405.24 mi (7,089.54 km) |
| Oskaloosa to Overijse | 4,361.98 mi (7,019.93 km) |
| Oskaloosa to Overpelt | 4,377.49 mi (7,044.89 km) |
| Oskaloosa to Paal | 4,375.48 mi (7,041.65 km) |
| Oskaloosa to Peer | 4,382.04 mi (7,052.21 km) |
| Oskaloosa to Pepinster | 4,417.02 mi (7,108.51 km) |
| Oskaloosa to Peruwelz | 4,337.16 mi (6,979.99 km) |
| Oskaloosa to Perwez | 4,378.33 mi (7,046.24 km) |
| Oskaloosa to Philippeville | 4,384.80 mi (7,056.66 km) |
