| Karczew to Oberkirch | 629.50 mi (1,013.08 km) |
| Karczew to Obernburg am Main | 548.51 mi (882.75 km) |
| Karczew to Obernkirchen | 513.62 mi (826.59 km) |
| Karczew to Oberschleissheim | 503.18 mi (809.80 km) |
| Karczew to Oberstdorf | 585.72 mi (942.62 km) |
| Karczew to Obertraubling | 452.96 mi (728.97 km) |
| Karczew to Obertshausen | 555.97 mi (894.75 km) |
| Karczew to Oberursel | 563.70 mi (907.18 km) |
| Karczew to Ochsenfurt | 515.20 mi (829.14 km) |
| Karczew to Ochsenhausen | 571.77 mi (920.17 km) |
| Karczew to Ochtrup | 595.27 mi (957.99 km) |
| Karczew to Odenthal | 610.45 mi (982.42 km) |
| Karczew to Oelde | 557.28 mi (896.85 km) |
| Karczew to Oelsnitz | 409.04 mi (658.29 km) |
| Karczew to Oer-Erkenschwick | 597.17 mi (961.06 km) |
