| Mulheim to Octeville | 394.32 mi (634.60 km) |
| Mulheim to Oignies | 181.74 mi (292.49 km) |
| Mulheim to Oissel | 292.89 mi (471.37 km) |
| Mulheim to Olivet | 331.97 mi (534.25 km) |
| Mulheim to Ollioules | 574.69 mi (924.87 km) |
| Mulheim to Olonne-sur-Mer | 517.33 mi (832.56 km) |
| Mulheim to Oloron-Sainte-Marie | 667.57 mi (1,074.35 km) |
| Mulheim to Onet Village | 526.60 mi (847.48 km) |
| Mulheim to Onnaing | 160.09 mi (257.65 km) |
| Mulheim to Orange | 512.69 mi (825.09 km) |
| Mulheim to Orchies | 171.48 mi (275.97 km) |
| Mulheim to Orleans | 329.68 mi (530.57 km) |
| Mulheim to Orly | 271.93 mi (437.63 km) |
| Mulheim to Ormesson-sur-Marne | 265.20 mi (426.79 km) |
| Mulheim to Orsay | 280.84 mi (451.97 km) |
