| Harsefeld to Opwijk | 282.92 mi (455.31 km) |
| Harsefeld to Ostend | 317.31 mi (510.65 km) |
| Harsefeld to Oud-Heverlee | 273.19 mi (439.65 km) |
| Harsefeld to Oud-Turnhout | 240.77 mi (387.49 km) |
| Harsefeld to Oudenaarde | 307.80 mi (495.35 km) |
| Harsefeld to Oudenburg | 315.89 mi (508.38 km) |
| Harsefeld to Oupeye | 250.34 mi (402.88 km) |
| Harsefeld to Overijse | 279.80 mi (450.29 km) |
| Harsefeld to Overpelt | 231.30 mi (372.25 km) |
| Harsefeld to Paal | 247.42 mi (398.19 km) |
| Harsefeld to Peer | 234.19 mi (376.89 km) |
| Harsefeld to Pepinster | 253.36 mi (407.74 km) |
| Harsefeld to Peruwelz | 323.03 mi (519.87 km) |
| Harsefeld to Perwez | 278.77 mi (448.64 km) |
| Harsefeld to Philippeville | 308.25 mi (496.09 km) |
