| Karlovo to University Place (Washington) | 5,915.40 mi (9,519.91 km) |
| Karlovo to Upland (California) | 6,626.69 mi (10,664.63 km) |
| Karlovo to Upper Arlington (Ohio) | 5,165.75 mi (8,313.48 km) |
| Karlovo to Upper Grand Lagoon (Florida) | 5,753.22 mi (9,258.91 km) |
| Karlovo to Upper Montclair (New Jersey) | 4,777.85 mi (7,689.20 km) |
| Karlovo to Urbana (Illinois) | 5,354.11 mi (8,616.60 km) |
| Karlovo to Urbana (Maryland) | 4,972.41 mi (8,002.32 km) |
| Karlovo to Urbana (Ohio) | 5,188.04 mi (8,349.34 km) |
| Karlovo to Urbandale (Iowa) | 5,473.50 mi (8,808.74 km) |
| Karlovo to Utica (New York) | 4,721.13 mi (7,597.93 km) |
| Karlovo to Uvalde (Texas) | 6,352.14 mi (10,222.77 km) |
| Karlovo to Vacaville (California) | 6,464.39 mi (10,403.44 km) |
| Karlovo to Vadnais Heights (Minnesota) | 5,273.21 mi (8,486.42 km) |
| Karlovo to Vail (Arizona) | 6,557.80 mi (10,553.76 km) |
| Karlovo to Valdosta (Georgia) | 5,616.97 mi (9,039.64 km) |
