| Sinzig to Oberkirch | 143.92 mi (231.62 km) |
| Sinzig to Obernburg am Main | 96.74 mi (155.70 km) |
| Sinzig to Obernkirchen | 143.55 mi (231.02 km) |
| Sinzig to Oberschleissheim | 250.52 mi (403.17 km) |
| Sinzig to Oberstdorf | 256.43 mi (412.69 km) |
| Sinzig to Obertraubling | 244.97 mi (394.24 km) |
| Sinzig to Obertshausen | 77.22 mi (124.28 km) |
| Sinzig to Oberursel | 62.99 mi (101.37 km) |
| Sinzig to Ochsenfurt | 139.24 mi (224.08 km) |
| Sinzig to Ochsenhausen | 209.61 mi (337.34 km) |
| Sinzig to Ochtrup | 114.75 mi (184.67 km) |
| Sinzig to Odenthal | 34.23 mi (55.09 km) |
| Sinzig to Oelde | 97.12 mi (156.30 km) |
| Sinzig to Oelsnitz | 216.23 mi (347.99 km) |
| Sinzig to Oer-Erkenschwick | 75.79 mi (121.97 km) |
