| Gela to Oberkirch | 851.00 mi (1,369.56 km) |
| Gela to Obernburg am Main | 918.43 mi (1,478.08 km) |
| Gela to Obernkirchen | 1,079.36 mi (1,737.07 km) |
| Gela to Oberschleissheim | 784.49 mi (1,262.52 km) |
| Gela to Oberstdorf | 742.67 mi (1,195.21 km) |
| Gela to Obertraubling | 828.77 mi (1,333.77 km) |
| Gela to Obertshausen | 937.61 mi (1,508.95 km) |
| Gela to Oberursel | 950.24 mi (1,529.27 km) |
| Gela to Ochsenfurt | 894.09 mi (1,438.90 km) |
| Gela to Ochsenhausen | 790.95 mi (1,272.91 km) |
| Gela to Ochtrup | 1,100.79 mi (1,771.55 km) |
| Gela to Odenthal | 1,026.77 mi (1,652.42 km) |
| Gela to Oelde | 1,062.77 mi (1,710.36 km) |
| Gela to Oelsnitz | 928.14 mi (1,493.70 km) |
| Gela to Oer-Erkenschwick | 1,063.57 mi (1,711.65 km) |
