| Karlstad to Oerlinghausen | 545.33 mi (877.62 km) |
| Karlstad to Oestrich-Winkel | 683.68 mi (1,100.28 km) |
| Karlstad to Offenburg | 786.58 mi (1,265.88 km) |
| Karlstad to Oftersheim | 718.77 mi (1,156.74 km) |
| Karlstad to Ohrdruf | 600.70 mi (966.73 km) |
| Karlstad to Ohringen | 721.23 mi (1,160.70 km) |
| Karlstad to Olbernhau | 601.95 mi (968.75 km) |
| Karlstad to Olching | 777.38 mi (1,251.07 km) |
| Karlstad to Oldenburg | 475.85 mi (765.80 km) |
| Karlstad to Oldenburg in Holstein | 364.52 mi (586.63 km) |
| Karlstad to Olfen | 580.35 mi (933.98 km) |
| Karlstad to Olpe | 618.96 mi (996.13 km) |
| Karlstad to Olsberg | 588.29 mi (946.77 km) |
| Karlstad to Oranienburg | 457.78 mi (736.73 km) |
| Karlstad to Ortenberg | 647.65 mi (1,042.28 km) |
