| Gharb to Oberkirch | 916.09 mi (1,474.31 km) |
| Gharb to Obernburg am Main | 985.33 mi (1,585.74 km) |
| Gharb to Obernkirchen | 1,147.04 mi (1,845.99 km) |
| Gharb to Oberschleissheim | 852.84 mi (1,372.51 km) |
| Gharb to Oberstdorf | 809.58 mi (1,302.90 km) |
| Gharb to Obertraubling | 897.58 mi (1,444.52 km) |
| Gharb to Obertshausen | 1,004.35 mi (1,616.34 km) |
| Gharb to Oberursel | 1,016.82 mi (1,636.41 km) |
| Gharb to Ochsenfurt | 961.67 mi (1,547.66 km) |
| Gharb to Ochsenhausen | 857.83 mi (1,380.54 km) |
| Gharb to Ochtrup | 1,167.17 mi (1,878.38 km) |
| Gharb to Odenthal | 1,092.50 mi (1,758.21 km) |
| Gharb to Oelde | 1,129.69 mi (1,818.05 km) |
| Gharb to Oelsnitz | 997.09 mi (1,604.66 km) |
| Gharb to Oer-Erkenschwick | 1,129.73 mi (1,818.12 km) |
