| Rotterdam to Oberkirch | 282.30 mi (454.32 km) |
| Rotterdam to Obernburg am Main | 247.98 mi (399.08 km) |
| Rotterdam to Obernkirchen | 197.48 mi (317.81 km) |
| Rotterdam to Oberschleissheim | 402.61 mi (647.93 km) |
| Rotterdam to Oberstdorf | 404.43 mi (650.87 km) |
| Rotterdam to Obertraubling | 393.89 mi (633.91 km) |
| Rotterdam to Obertshausen | 227.65 mi (366.37 km) |
| Rotterdam to Oberursel | 212.93 mi (342.67 km) |
| Rotterdam to Ochsenfurt | 289.13 mi (465.30 km) |
| Rotterdam to Ochsenhausen | 359.13 mi (577.97 km) |
| Rotterdam to Ochtrup | 116.01 mi (186.69 km) |
| Rotterdam to Odenthal | 128.08 mi (206.12 km) |
| Rotterdam to Oelde | 155.79 mi (250.72 km) |
| Rotterdam to Oelsnitz | 347.76 mi (559.67 km) |
| Rotterdam to Oer-Erkenschwick | 119.10 mi (191.68 km) |
