| Tomares to Oberkirch | 1,047.72 mi (1,686.14 km) |
| Tomares to Obernburg am Main | 1,144.01 mi (1,841.11 km) |
| Tomares to Obernkirchen | 1,263.61 mi (2,033.59 km) |
| Tomares to Oberschleissheim | 1,161.83 mi (1,869.79 km) |
| Tomares to Oberstdorf | 1,079.89 mi (1,737.91 km) |
| Tomares to Obertraubling | 1,212.29 mi (1,951.00 km) |
| Tomares to Obertshausen | 1,144.93 mi (1,842.58 km) |
| Tomares to Oberursel | 1,143.51 mi (1,840.31 km) |
| Tomares to Ochsenfurt | 1,166.05 mi (1,876.58 km) |
| Tomares to Ochsenhausen | 1,093.79 mi (1,760.28 km) |
| Tomares to Ochtrup | 1,208.62 mi (1,945.08 km) |
| Tomares to Odenthal | 1,143.13 mi (1,839.69 km) |
| Tomares to Oelde | 1,214.08 mi (1,953.88 km) |
| Tomares to Oelsnitz | 1,271.71 mi (2,046.61 km) |
| Tomares to Oer-Erkenschwick | 1,179.47 mi (1,898.18 km) |
