| Ciro Marina to Oberkirch | 775.54 mi (1,248.11 km) |
| Ciro Marina to Obernburg am Main | 822.14 mi (1,323.11 km) |
| Ciro Marina to Obernkirchen | 969.57 mi (1,560.38 km) |
| Ciro Marina to Oberschleissheim | 672.88 mi (1,082.90 km) |
| Ciro Marina to Oberstdorf | 652.75 mi (1,050.49 km) |
| Ciro Marina to Obertraubling | 706.77 mi (1,137.43 km) |
| Ciro Marina to Obertshausen | 842.66 mi (1,356.13 km) |
| Ciro Marina to Oberursel | 856.69 mi (1,378.71 km) |
| Ciro Marina to Ochsenfurt | 790.10 mi (1,271.54 km) |
| Ciro Marina to Ochsenhausen | 699.35 mi (1,125.50 km) |
| Ciro Marina to Ochtrup | 1,005.74 mi (1,618.59 km) |
| Ciro Marina to Odenthal | 939.89 mi (1,512.60 km) |
| Ciro Marina to Oelde | 962.65 mi (1,549.24 km) |
| Ciro Marina to Oelsnitz | 800.52 mi (1,288.32 km) |
| Ciro Marina to Oer-Erkenschwick | 971.55 mi (1,563.56 km) |
