| Cities | Distance |
|---|---|
| Herdecke to Oegstgeest | 137.84 mi (221.82 km) |
| Herdecke to Oirschot | 92.11 mi (148.24 km) |
| Herdecke to Oisterwijk | 96.90 mi (155.95 km) |
| Herdecke to Oldebroek | 97.63 mi (157.11 km) |
| Herdecke to Oldenzaal | 66.83 mi (107.56 km) |
| Herdecke to Ommen | 88.47 mi (142.37 km) |
| Herdecke to Oosterend | 125.00 mi (201.17 km) |
| Herdecke to Oosterhout | 112.02 mi (180.28 km) |
| Herdecke to Oosterwolde | 120.05 mi (193.20 km) |
| Herdecke to Oostzaan | 130.02 mi (209.24 km) |
| Herdecke to Opmeer | 138.56 mi (222.98 km) |
| Herdecke to Oss | 86.09 mi (138.56 km) |
| Herdecke to Oud-Beijerland | 133.29 mi (214.51 km) |
| Herdecke to Oudenbosch | 125.83 mi (202.50 km) |
| Herdecke to Oudewater | 117.85 mi (189.66 km) |