| Carlsbad to Karlovo | 6,678.06 mi (10,747.29 km) |
| Carlsbad to Karnobat | 6,734.61 mi (10,838.30 km) |
| Carlsbad to Kavarna | 6,719.34 mi (10,813.74 km) |
| Carlsbad to Kazanlak | 6,695.16 mi (10,774.82 km) |
| Carlsbad to Knezha | 6,608.51 mi (10,635.38 km) |
| Carlsbad to Kostinbrod | 6,625.36 mi (10,662.49 km) |
| Carlsbad to Kozloduy | 6,582.65 mi (10,593.76 km) |
| Carlsbad to Kyustendil | 6,641.79 mi (10,688.93 km) |
| Carlsbad to Levski | 6,643.76 mi (10,692.09 km) |
| Carlsbad to Lom | 6,567.03 mi (10,568.62 km) |
| Carlsbad to Lovech | 6,646.68 mi (10,696.79 km) |
| Carlsbad to Lukovit | 6,628.35 mi (10,667.31 km) |
| Carlsbad to Lyaskovets | 6,674.60 mi (10,741.72 km) |
| Carlsbad to Mezdra | 6,618.89 mi (10,652.07 km) |
| Carlsbad to Momchilgrad | 6,759.91 mi (10,879.02 km) |
