| Ipswich to Oberkirch | 390.68 mi (628.73 km) |
| Ipswich to Obernburg am Main | 379.67 mi (611.02 km) |
| Ipswich to Obernkirchen | 337.60 mi (543.31 km) |
| Ipswich to Oberschleissheim | 530.04 mi (853.01 km) |
| Ipswich to Oberstdorf | 518.20 mi (833.97 km) |
| Ipswich to Obertraubling | 528.22 mi (850.09 km) |
| Ipswich to Obertshausen | 360.47 mi (580.12 km) |
| Ipswich to Oberursel | 346.19 mi (557.14 km) |
| Ipswich to Ochsenfurt | 422.47 mi (679.90 km) |
| Ipswich to Ochsenhausen | 476.93 mi (767.55 km) |
| Ipswich to Ochtrup | 256.07 mi (412.10 km) |
| Ipswich to Odenthal | 265.68 mi (427.57 km) |
| Ipswich to Oelde | 298.18 mi (479.87 km) |
| Ipswich to Oelsnitz | 489.13 mi (787.19 km) |
| Ipswich to Oer-Erkenschwick | 261.65 mi (421.09 km) |
