| Erquelinnes to Obernburg am Main | 224.89 mi (361.93 km) |
| Erquelinnes to Obernkirchen | 254.62 mi (409.77 km) |
| Erquelinnes to Oberschleissheim | 364.30 mi (586.28 km) |
| Erquelinnes to Oberstdorf | 344.05 mi (553.70 km) |
| Erquelinnes to Obertraubling | 371.56 mi (597.97 km) |
| Erquelinnes to Obertshausen | 209.07 mi (336.46 km) |
| Erquelinnes to Oberursel | 196.91 mi (316.89 km) |
| Erquelinnes to Ochsenfurt | 267.96 mi (431.25 km) |
| Erquelinnes to Ochsenhausen | 305.03 mi (490.90 km) |
| Erquelinnes to Ochtrup | 186.40 mi (299.98 km) |
| Erquelinnes to Odenthal | 140.32 mi (225.83 km) |
| Erquelinnes to Oelde | 204.06 mi (328.40 km) |
| Erquelinnes to Oelsnitz | 354.48 mi (570.49 km) |
| Erquelinnes to Oer-Erkenschwick | 164.29 mi (264.41 km) |
| Erquelinnes to Oerlinghausen | 227.80 mi (366.61 km) |
