| Calasparra to Oberkirch | 863.37 mi (1,389.46 km) |
| Calasparra to Obernburg am Main | 963.96 mi (1,551.34 km) |
| Calasparra to Obernkirchen | 1,100.61 mi (1,771.25 km) |
| Calasparra to Oberschleissheim | 959.19 mi (1,543.67 km) |
| Calasparra to Oberstdorf | 875.99 mi (1,409.76 km) |
| Calasparra to Obertraubling | 1,012.54 mi (1,629.52 km) |
| Calasparra to Obertshausen | 968.19 mi (1,558.16 km) |
| Calasparra to Oberursel | 969.19 mi (1,559.76 km) |
| Calasparra to Ochsenfurt | 979.97 mi (1,577.11 km) |
| Calasparra to Ochsenhausen | 896.37 mi (1,442.57 km) |
| Calasparra to Ochtrup | 1,056.22 mi (1,699.83 km) |
| Calasparra to Odenthal | 983.44 mi (1,582.69 km) |
| Calasparra to Oelde | 1,053.57 mi (1,695.55 km) |
| Calasparra to Oelsnitz | 1,082.02 mi (1,741.34 km) |
| Calasparra to Oer-Erkenschwick | 1,023.06 mi (1,646.45 km) |
