| Highland to Opwijk | 5,564.78 mi (8,955.65 km) |
| Highland to Ostend | 5,512.79 mi (8,871.97 km) |
| Highland to Oud-Heverlee | 5,586.28 mi (8,990.25 km) |
| Highland to Oud-Turnhout | 5,572.59 mi (8,968.22 km) |
| Highland to Oudenaarde | 5,552.11 mi (8,935.25 km) |
| Highland to Oudenburg | 5,517.34 mi (8,879.30 km) |
| Highland to Oupeye | 5,622.59 mi (9,048.69 km) |
| Highland to Overijse | 5,584.55 mi (8,987.47 km) |
| Highland to Overpelt | 5,590.74 mi (8,997.43 km) |
| Highland to Paal | 5,591.93 mi (8,999.34 km) |
| Highland to Peer | 5,595.97 mi (9,005.85 km) |
| Highland to Pepinster | 5,634.90 mi (9,068.50 km) |
| Highland to Peruwelz | 5,567.53 mi (8,960.07 km) |
| Highland to Perwez | 5,601.05 mi (9,014.02 km) |
| Highland to Philippeville | 5,613.33 mi (9,033.78 km) |
