| Calpe to Oberkirch | 791.84 mi (1,274.35 km) |
| Calpe to Obernburg am Main | 893.52 mi (1,437.98 km) |
| Calpe to Obernkirchen | 1,036.92 mi (1,668.76 km) |
| Calpe to Oberschleissheim | 878.11 mi (1,413.17 km) |
| Calpe to Oberstdorf | 794.83 mi (1,279.16 km) |
| Calpe to Obertraubling | 932.49 mi (1,500.70 km) |
| Calpe to Obertshausen | 899.28 mi (1,447.26 km) |
| Calpe to Oberursel | 901.41 mi (1,450.68 km) |
| Calpe to Ochsenfurt | 906.56 mi (1,458.97 km) |
| Calpe to Ochsenhausen | 818.20 mi (1,316.77 km) |
| Calpe to Ochtrup | 997.78 mi (1,605.78 km) |
| Calpe to Odenthal | 922.38 mi (1,484.42 km) |
| Calpe to Oelde | 991.43 mi (1,595.55 km) |
| Calpe to Oelsnitz | 1,006.22 mi (1,619.36 km) |
| Calpe to Oer-Erkenschwick | 963.10 mi (1,549.96 km) |
