| Karlovo to Twist | 1,071.81 mi (1,724.91 km) |
| Karlovo to Twistringen | 1,023.50 mi (1,647.17 km) |
| Karlovo to Ubach-Palenberg | 1,048.38 mi (1,687.21 km) |
| Karlovo to Uberherrn | 978.94 mi (1,575.44 km) |
| Karlovo to Uberlingen | 837.72 mi (1,348.17 km) |
| Karlovo to Ubstadt-Weiher | 896.42 mi (1,442.64 km) |
| Karlovo to Ueckermunde | 910.71 mi (1,465.65 km) |
| Karlovo to Uelzen | 968.82 mi (1,559.16 km) |
| Karlovo to Uetersen | 1,029.65 mi (1,657.05 km) |
| Karlovo to Uetze | 957.97 mi (1,541.70 km) |
| Karlovo to Uhingen | 843.39 mi (1,357.30 km) |
| Karlovo to Ulm | 818.48 mi (1,317.22 km) |
| Karlovo to Unna | 1,008.69 mi (1,623.34 km) |
| Karlovo to Unterfohring | 742.80 mi (1,195.42 km) |
| Karlovo to Unterhaching | 740.78 mi (1,192.18 km) |
