| Erchie to Oberkirch | 733.33 mi (1,180.18 km) |
| Erchie to Obernburg am Main | 772.03 mi (1,242.46 km) |
| Erchie to Obernkirchen | 913.53 mi (1,470.18 km) |
| Erchie to Oberschleissheim | 619.63 mi (997.20 km) |
| Erchie to Oberstdorf | 607.64 mi (977.90 km) |
| Erchie to Obertraubling | 649.40 mi (1,045.10 km) |
| Erchie to Obertshausen | 792.76 mi (1,275.82 km) |
| Erchie to Oberursel | 807.10 mi (1,298.90 km) |
| Erchie to Ochsenfurt | 737.77 mi (1,187.33 km) |
| Erchie to Ochsenhausen | 652.73 mi (1,050.47 km) |
| Erchie to Ochtrup | 954.20 mi (1,535.64 km) |
| Erchie to Odenthal | 891.65 mi (1,434.98 km) |
| Erchie to Oelde | 909.81 mi (1,464.19 km) |
| Erchie to Oelsnitz | 740.19 mi (1,191.23 km) |
| Erchie to Oer-Erkenschwick | 921.30 mi (1,482.69 km) |
