| Morlanwelz-Mariemont to Oestrich-Winkel | 169.36 mi (272.56 km) |
| Morlanwelz-Mariemont to Offenburg | 215.34 mi (346.55 km) |
| Morlanwelz-Mariemont to Oftersheim | 207.44 mi (333.85 km) |
| Morlanwelz-Mariemont to Ohrdruf | 285.90 mi (460.12 km) |
| Morlanwelz-Mariemont to Ohringen | 250.07 mi (402.45 km) |
| Morlanwelz-Mariemont to Olbernhau | 399.47 mi (642.88 km) |
| Morlanwelz-Mariemont to Olching | 354.65 mi (570.76 km) |
| Morlanwelz-Mariemont to Oldenburg | 252.07 mi (405.66 km) |
| Morlanwelz-Mariemont to Oldenburg in Holstein | 386.27 mi (621.65 km) |
| Morlanwelz-Mariemont to Olfen | 162.31 mi (261.22 km) |
| Morlanwelz-Mariemont to Olpe | 162.21 mi (261.05 km) |
| Morlanwelz-Mariemont to Olsberg | 195.32 mi (314.34 km) |
| Morlanwelz-Mariemont to Oranienburg | 417.54 mi (671.97 km) |
| Morlanwelz-Mariemont to Ortenberg | 212.42 mi (341.85 km) |
| Morlanwelz-Mariemont to Oschatz | 391.08 mi (629.38 km) |
