| Karlovy Vary to Oestrich-Winkel | 216.43 mi (348.31 km) |
| Karlovy Vary to Offenburg | 253.46 mi (407.90 km) |
| Karlovy Vary to Oftersheim | 200.21 mi (322.20 km) |
| Karlovy Vary to Ohrdruf | 102.64 mi (165.19 km) |
| Karlovy Vary to Ohringen | 166.62 mi (268.16 km) |
| Karlovy Vary to Olbernhau | 36.32 mi (58.45 km) |
| Karlovy Vary to Olching | 156.88 mi (252.48 km) |
| Karlovy Vary to Oldenburg | 283.33 mi (455.97 km) |
| Karlovy Vary to Oldenburg in Holstein | 293.45 mi (472.26 km) |
| Karlovy Vary to Olfen | 259.87 mi (418.22 km) |
| Karlovy Vary to Olpe | 227.42 mi (365.99 km) |
| Karlovy Vary to Olsberg | 206.68 mi (332.63 km) |
| Karlovy Vary to Oranienburg | 175.08 mi (281.76 km) |
| Karlovy Vary to Ortenberg | 168.70 mi (271.49 km) |
| Karlovy Vary to Oschatz | 74.62 mi (120.08 km) |
