| Romans-sur-Isere to Obernburg am Main | 382.25 mi (615.17 km) |
| Romans-sur-Isere to Obernkirchen | 532.04 mi (856.23 km) |
| Romans-sur-Isere to Oberschleissheim | 379.89 mi (611.38 km) |
| Romans-sur-Isere to Oberstdorf | 298.39 mi (480.21 km) |
| Romans-sur-Isere to Obertraubling | 430.64 mi (693.04 km) |
| Romans-sur-Isere to Obertshausen | 388.99 mi (626.02 km) |
| Romans-sur-Isere to Oberursel | 392.19 mi (631.17 km) |
| Romans-sur-Isere to Ochsenfurt | 395.14 mi (635.92 km) |
| Romans-sur-Isere to Ochsenhausen | 312.65 mi (503.16 km) |
| Romans-sur-Isere to Ochtrup | 504.14 mi (811.34 km) |
| Romans-sur-Isere to Odenthal | 424.47 mi (683.11 km) |
| Romans-sur-Isere to Oelde | 489.84 mi (788.33 km) |
| Romans-sur-Isere to Oelsnitz | 496.55 mi (799.12 km) |
| Romans-sur-Isere to Oer-Erkenschwick | 466.72 mi (751.12 km) |
| Romans-sur-Isere to Oerlinghausen | 505.81 mi (814.02 km) |
