| Tuscaloosa to Karlovo | 5,672.42 mi (9,128.88 km) |
| Tuscaloosa to Karnobat | 5,758.45 mi (9,267.33 km) |
| Tuscaloosa to Kavarna | 5,774.59 mi (9,293.30 km) |
| Tuscaloosa to Kazanlak | 5,697.06 mi (9,168.54 km) |
| Tuscaloosa to Knezha | 5,607.05 mi (9,023.67 km) |
| Tuscaloosa to Kostinbrod | 5,601.55 mi (9,014.82 km) |
| Tuscaloosa to Kozloduy | 5,581.21 mi (8,982.08 km) |
| Tuscaloosa to Kyustendil | 5,602.46 mi (9,016.28 km) |
| Tuscaloosa to Levski | 5,654.04 mi (9,099.30 km) |
| Tuscaloosa to Lom | 5,559.85 mi (8,947.72 km) |
| Tuscaloosa to Lovech | 5,647.70 mi (9,089.09 km) |
| Tuscaloosa to Lukovit | 5,623.14 mi (9,049.57 km) |
| Tuscaloosa to Lyaskovets | 5,688.46 mi (9,154.70 km) |
| Tuscaloosa to Mezdra | 5,606.75 mi (9,023.19 km) |
| Tuscaloosa to Momchilgrad | 5,744.90 mi (9,245.53 km) |
