| Wattrelos to Oestrich-Winkel | 216.31 mi (348.11 km) |
| Wattrelos to Offenburg | 261.54 mi (420.91 km) |
| Wattrelos to Oftersheim | 255.24 mi (410.77 km) |
| Wattrelos to Ohrdruf | 328.44 mi (528.57 km) |
| Wattrelos to Ohringen | 297.82 mi (479.30 km) |
| Wattrelos to Olbernhau | 442.53 mi (712.19 km) |
| Wattrelos to Olching | 402.46 mi (647.69 km) |
| Wattrelos to Oldenburg | 271.65 mi (437.18 km) |
| Wattrelos to Oldenburg in Holstein | 406.87 mi (654.79 km) |
| Wattrelos to Olfen | 193.51 mi (311.42 km) |
| Wattrelos to Olpe | 202.49 mi (325.87 km) |
| Wattrelos to Olsberg | 233.18 mi (375.26 km) |
| Wattrelos to Oranienburg | 451.26 mi (726.23 km) |
| Wattrelos to Ortenberg | 257.47 mi (414.35 km) |
| Wattrelos to Oschatz | 431.71 mi (694.76 km) |
