| Amposta to Oberkirch | 653.71 mi (1,052.05 km) |
| Amposta to Obernburg am Main | 754.64 mi (1,214.47 km) |
| Amposta to Obernkirchen | 894.33 mi (1,439.29 km) |
| Amposta to Oberschleissheim | 750.05 mi (1,207.09 km) |
| Amposta to Oberstdorf | 666.97 mi (1,073.38 km) |
| Amposta to Obertraubling | 802.99 mi (1,292.29 km) |
| Amposta to Obertshausen | 759.37 mi (1,222.09 km) |
| Amposta to Oberursel | 760.81 mi (1,224.40 km) |
| Amposta to Ochsenfurt | 770.02 mi (1,239.23 km) |
| Amposta to Ochsenhausen | 686.46 mi (1,104.76 km) |
| Amposta to Ochtrup | 853.39 mi (1,373.40 km) |
| Amposta to Odenthal | 778.70 mi (1,253.20 km) |
| Amposta to Oelde | 848.19 mi (1,365.03 km) |
| Amposta to Oelsnitz | 871.89 mi (1,403.18 km) |
| Amposta to Oer-Erkenschwick | 819.11 mi (1,318.22 km) |
