| Karlstad to Oberkirch | 780.42 mi (1,255.96 km) |
| Karlstad to Obernburg am Main | 681.40 mi (1,096.60 km) |
| Karlstad to Obernkirchen | 519.77 mi (836.48 km) |
| Karlstad to Oberschleissheim | 772.86 mi (1,243.79 km) |
| Karlstad to Oberstdorf | 837.31 mi (1,347.52 km) |
| Karlstad to Obertraubling | 721.43 mi (1,161.02 km) |
| Karlstad to Obertshausen | 669.41 mi (1,077.32 km) |
| Karlstad to Oberursel | 663.18 mi (1,067.28 km) |
| Karlstad to Ochsenfurt | 685.92 mi (1,103.88 km) |
| Karlstad to Ochsenhausen | 794.30 mi (1,278.30 km) |
| Karlstad to Ochtrup | 552.38 mi (888.97 km) |
| Karlstad to Odenthal | 628.50 mi (1,011.48 km) |
| Karlstad to Oelde | 561.20 mi (903.16 km) |
| Karlstad to Oelsnitz | 621.43 mi (1,000.09 km) |
| Karlstad to Oer-Erkenschwick | 587.24 mi (945.08 km) |
