| Cities | Distance |
|---|---|
| Karlovo to Navodari | 223.22 mi (359.24 km) |
| Karlovo to Negresti-Oas | 367.26 mi (591.05 km) |
| Karlovo to Nehoiu | 201.46 mi (324.21 km) |
| Karlovo to Ocna Mures | 263.02 mi (423.29 km) |
| Karlovo to Odobesti | 243.05 mi (391.16 km) |
| Karlovo to Odorheiu Secuiesc | 254.76 mi (410.00 km) |
| Karlovo to Oltenita | 135.59 mi (218.21 km) |
| Karlovo to Onesti | 267.84 mi (431.05 km) |
| Karlovo to Oradea | 337.00 mi (542.34 km) |
| Karlovo to Orastie | 235.38 mi (378.80 km) |
| Karlovo to Oravita | 227.18 mi (365.61 km) |
| Karlovo to Orsova | 187.60 mi (301.91 km) |
| Karlovo to Otelu Rosu | 232.99 mi (374.97 km) |
| Karlovo to Otopeni | 146.09 mi (235.10 km) |
| Karlovo to Ovidiu | 219.18 mi (352.73 km) |