| Dalmine to Oberkirch | 211.60 mi (340.53 km) |
| Dalmine to Obernburg am Main | 290.28 mi (467.16 km) |
| Dalmine to Obernkirchen | 457.67 mi (736.55 km) |
| Dalmine to Oberschleissheim | 202.16 mi (325.35 km) |
| Dalmine to Oberstdorf | 125.80 mi (202.45 km) |
| Dalmine to Obertraubling | 258.71 mi (416.35 km) |
| Dalmine to Obertshausen | 307.22 mi (494.43 km) |
| Dalmine to Oberursel | 318.14 mi (512.00 km) |
| Dalmine to Ochsenfurt | 277.22 mi (446.15 km) |
| Dalmine to Ochsenhausen | 168.16 mi (270.63 km) |
| Dalmine to Ochtrup | 465.90 mi (749.79 km) |
| Dalmine to Odenthal | 388.98 mi (626.00 km) |
| Dalmine to Oelde | 432.28 mi (695.69 km) |
| Dalmine to Oelsnitz | 349.99 mi (563.25 km) |
| Dalmine to Oer-Erkenschwick | 427.62 mi (688.19 km) |
