| Guimar to Oberkirch | 1,909.38 mi (3,072.85 km) |
| Guimar to Obernburg am Main | 2,002.81 mi (3,223.21 km) |
| Guimar to Obernkirchen | 2,109.96 mi (3,395.66 km) |
| Guimar to Oberschleissheim | 2,028.43 mi (3,264.45 km) |
| Guimar to Oberstdorf | 1,946.76 mi (3,133.01 km) |
| Guimar to Obertraubling | 2,078.24 mi (3,344.60 km) |
| Guimar to Obertshausen | 2,001.95 mi (3,221.82 km) |
| Guimar to Oberursel | 1,999.18 mi (3,217.38 km) |
| Guimar to Ochsenfurt | 2,027.53 mi (3,262.99 km) |
| Guimar to Ochsenhausen | 1,959.51 mi (3,153.53 km) |
| Guimar to Ochtrup | 2,047.55 mi (3,295.22 km) |
| Guimar to Odenthal | 1,989.17 mi (3,201.26 km) |
| Guimar to Oelde | 2,059.39 mi (3,314.27 km) |
| Guimar to Oelsnitz | 2,134.10 mi (3,434.50 km) |
| Guimar to Oer-Erkenschwick | 2,022.30 mi (3,254.57 km) |
