| Ekeren to Oestrich-Winkel | 180.29 mi (290.14 km) |
| Ekeren to Offenburg | 249.72 mi (401.89 km) |
| Ekeren to Oftersheim | 226.36 mi (364.29 km) |
| Ekeren to Ohrdruf | 276.02 mi (444.20 km) |
| Ekeren to Ohringen | 266.69 mi (429.20 km) |
| Ekeren to Olbernhau | 390.01 mi (627.65 km) |
| Ekeren to Olching | 374.32 mi (602.41 km) |
| Ekeren to Oldenburg | 205.79 mi (331.18 km) |
| Ekeren to Oldenburg in Holstein | 341.02 mi (548.81 km) |
| Ekeren to Olfen | 131.05 mi (210.91 km) |
| Ekeren to Olpe | 149.21 mi (240.12 km) |
| Ekeren to Olsberg | 175.65 mi (282.68 km) |
| Ekeren to Oranienburg | 388.29 mi (624.88 km) |
| Ekeren to Ortenberg | 212.33 mi (341.72 km) |
| Ekeren to Oschatz | 375.28 mi (603.95 km) |
