| Cromer to Oberkirch | 424.24 mi (682.74 km) |
| Cromer to Obernburg am Main | 399.51 mi (642.95 km) |
| Cromer to Obernkirchen | 331.03 mi (532.75 km) |
| Cromer to Oberschleissheim | 553.53 mi (890.82 km) |
| Cromer to Oberstdorf | 550.02 mi (885.18 km) |
| Cromer to Obertraubling | 545.75 mi (878.30 km) |
| Cromer to Obertshausen | 379.32 mi (610.46 km) |
| Cromer to Oberursel | 364.63 mi (586.81 km) |
| Cromer to Ochsenfurt | 440.93 mi (709.61 km) |
| Cromer to Ochsenhausen | 506.41 mi (814.98 km) |
| Cromer to Ochtrup | 252.24 mi (405.93 km) |
| Cromer to Odenthal | 279.92 mi (450.49 km) |
| Cromer to Oelde | 298.47 mi (480.34 km) |
| Cromer to Oelsnitz | 496.28 mi (798.68 km) |
| Cromer to Oer-Erkenschwick | 266.63 mi (429.11 km) |
