| Clarksville to Karlovo | 5,498.35 mi (8,848.75 km) |
| Clarksville to Karnobat | 5,581.66 mi (8,982.82 km) |
| Clarksville to Kavarna | 5,594.58 mi (9,003.60 km) |
| Clarksville to Kazanlak | 5,522.31 mi (8,887.29 km) |
| Clarksville to Knezha | 5,432.11 mi (8,742.14 km) |
| Clarksville to Kostinbrod | 5,429.11 mi (8,737.31 km) |
| Clarksville to Kozloduy | 5,406.11 mi (8,700.30 km) |
| Clarksville to Kyustendil | 5,431.83 mi (8,741.69 km) |
| Clarksville to Levski | 5,478.09 mi (8,816.14 km) |
| Clarksville to Lom | 5,385.27 mi (8,666.76 km) |
| Clarksville to Lovech | 5,472.74 mi (8,807.52 km) |
| Clarksville to Lukovit | 5,448.73 mi (8,768.88 km) |
| Clarksville to Lyaskovets | 5,512.33 mi (8,871.25 km) |
| Clarksville to Mezdra | 5,433.02 mi (8,743.59 km) |
| Clarksville to Momchilgrad | 5,572.34 mi (8,967.81 km) |
