| Forfar to Oberkirch | 723.59 mi (1,164.51 km) |
| Forfar to Obernburg am Main | 682.64 mi (1,098.60 km) |
| Forfar to Obernkirchen | 568.08 mi (914.24 km) |
| Forfar to Oberschleissheim | 837.66 mi (1,348.08 km) |
| Forfar to Oberstdorf | 845.92 mi (1,361.38 km) |
| Forfar to Obertraubling | 819.62 mi (1,319.06 km) |
| Forfar to Obertshausen | 661.83 mi (1,065.12 km) |
| Forfar to Oberursel | 647.21 mi (1,041.59 km) |
| Forfar to Ochsenfurt | 720.20 mi (1,159.05 km) |
| Forfar to Ochsenhausen | 800.06 mi (1,287.57 km) |
| Forfar to Ochtrup | 507.28 mi (816.39 km) |
| Forfar to Odenthal | 561.71 mi (903.99 km) |
| Forfar to Oelde | 554.94 mi (893.09 km) |
| Forfar to Oelsnitz | 750.71 mi (1,208.15 km) |
| Forfar to Oer-Erkenschwick | 535.56 mi (861.90 km) |
