| Cadca to Oberkirch | 489.14 mi (787.20 km) |
| Cadca to Obernburg am Main | 432.44 mi (695.94 km) |
| Cadca to Obernkirchen | 464.64 mi (747.76 km) |
| Cadca to Oberschleissheim | 338.47 mi (544.72 km) |
| Cadca to Oberstdorf | 414.40 mi (666.92 km) |
| Cadca to Obertraubling | 300.77 mi (484.04 km) |
| Cadca to Obertshausen | 446.38 mi (718.38 km) |
| Cadca to Oberursel | 458.10 mi (737.23 km) |
| Cadca to Ochsenfurt | 391.25 mi (629.66 km) |
| Cadca to Ochsenhausen | 413.48 mi (665.43 km) |
| Cadca to Ochtrup | 540.63 mi (870.06 km) |
| Cadca to Odenthal | 527.07 mi (848.24 km) |
| Cadca to Oelde | 494.37 mi (795.61 km) |
| Cadca to Oelsnitz | 302.29 mi (486.48 km) |
| Cadca to Oer-Erkenschwick | 528.59 mi (850.68 km) |
