| Fort William to Oberkirch | 793.05 mi (1,276.29 km) |
| Fort William to Obernburg am Main | 757.80 mi (1,219.56 km) |
| Fort William to Obernkirchen | 649.35 mi (1,045.04 km) |
| Fort William to Oberschleissheim | 913.12 mi (1,469.53 km) |
| Fort William to Oberstdorf | 917.33 mi (1,476.31 km) |
| Fort William to Obertraubling | 897.38 mi (1,444.19 km) |
| Fort William to Obertshausen | 737.05 mi (1,186.16 km) |
| Fort William to Oberursel | 722.33 mi (1,162.48 km) |
| Fort William to Ochsenfurt | 796.45 mi (1,281.76 km) |
| Fort William to Ochsenhausen | 872.34 mi (1,403.90 km) |
| Fort William to Ochtrup | 585.95 mi (942.99 km) |
| Fort William to Odenthal | 636.46 mi (1,024.28 km) |
| Fort William to Oelde | 633.95 mi (1,020.24 km) |
| Fort William to Oelsnitz | 831.23 mi (1,337.73 km) |
| Fort William to Oer-Erkenschwick | 612.54 mi (985.79 km) |
