| Karlovy Vary to Oakley (California) | 5,744.76 mi (9,245.30 km) |
| Karlovy Vary to Oakton (Virginia) | 4,231.75 mi (6,810.34 km) |
| Karlovy Vary to Oakville (Missouri) | 4,745.25 mi (7,636.74 km) |
| Karlovy Vary to Oatfield (Oregon) | 5,310.70 mi (8,546.74 km) |
| Karlovy Vary to Ocala (Florida) | 4,904.59 mi (7,893.17 km) |
| Karlovy Vary to Ocean Acres (New Jersey) | 4,072.76 mi (6,554.48 km) |
| Karlovy Vary to Ocean City (New Jersey) | 4,107.44 mi (6,610.29 km) |
| Karlovy Vary to Ocean Pines (Maryland) | 4,170.30 mi (6,711.44 km) |
| Karlovy Vary to Ocean Pointe (Hawaii) | 7,462.25 mi (12,009.34 km) |
| Karlovy Vary to Ocean Springs (Mississippi) | 5,105.00 mi (8,215.70 km) |
| Karlovy Vary to Oceanside (California) | 5,917.70 mi (9,523.62 km) |
| Karlovy Vary to Oceanside (New York) | 4,006.58 mi (6,447.97 km) |
| Karlovy Vary to Ocoee (Florida) | 4,909.92 mi (7,901.76 km) |
| Karlovy Vary to Oconomowoc (Wisconsin) | 4,445.09 mi (7,153.68 km) |
| Karlovy Vary to Odenton (Maryland) | 4,199.51 mi (6,758.46 km) |
