| Holzminden to Opwijk | 234.60 mi (377.56 km) |
| Holzminden to Ostend | 283.63 mi (456.46 km) |
| Holzminden to Oud-Heverlee | 217.55 mi (350.12 km) |
| Holzminden to Oud-Turnhout | 194.95 mi (313.75 km) |
| Holzminden to Oudenaarde | 261.26 mi (420.46 km) |
| Holzminden to Oudenburg | 280.79 mi (451.89 km) |
| Holzminden to Oupeye | 181.80 mi (292.58 km) |
| Holzminden to Overijse | 224.22 mi (360.84 km) |
| Holzminden to Overpelt | 178.39 mi (287.09 km) |
| Holzminden to Paal | 192.06 mi (309.08 km) |
| Holzminden to Peer | 178.48 mi (287.24 km) |
| Holzminden to Pepinster | 179.80 mi (289.35 km) |
| Holzminden to Peruwelz | 269.69 mi (434.02 km) |
| Holzminden to Perwez | 217.04 mi (349.30 km) |
| Holzminden to Philippeville | 240.79 mi (387.51 km) |
