| Heinsberg to Opwijk | 83.42 mi (134.26 km) |
| Heinsberg to Ostend | 138.16 mi (222.34 km) |
| Heinsberg to Oud-Heverlee | 64.23 mi (103.36 km) |
| Heinsberg to Oud-Turnhout | 51.29 mi (82.54 km) |
| Heinsberg to Oudenaarde | 109.64 mi (176.44 km) |
| Heinsberg to Oudenburg | 134.53 mi (216.50 km) |
| Heinsberg to Oupeye | 31.49 mi (50.67 km) |
| Heinsberg to Overijse | 70.77 mi (113.89 km) |
| Heinsberg to Overpelt | 31.32 mi (50.40 km) |
| Heinsberg to Paal | 40.15 mi (64.61 km) |
| Heinsberg to Peer | 28.30 mi (45.55 km) |
| Heinsberg to Pepinster | 36.41 mi (58.59 km) |
| Heinsberg to Peruwelz | 116.07 mi (186.80 km) |
| Heinsberg to Perwez | 63.60 mi (102.36 km) |
| Heinsberg to Philippeville | 90.27 mi (145.28 km) |
