| Calhoun to Karlovo | 5,506.80 mi (8,862.34 km) |
| Calhoun to Karnobat | 5,593.67 mi (9,002.14 km) |
| Calhoun to Kavarna | 5,610.93 mi (9,029.93 km) |
| Calhoun to Kazanlak | 5,531.65 mi (8,902.33 km) |
| Calhoun to Knezha | 5,441.71 mi (8,757.59 km) |
| Calhoun to Kostinbrod | 5,435.46 mi (8,747.53 km) |
| Calhoun to Kozloduy | 5,415.93 mi (8,716.10 km) |
| Calhoun to Kyustendil | 5,435.86 mi (8,748.16 km) |
| Calhoun to Levski | 5,489.02 mi (8,833.72 km) |
| Calhoun to Lom | 5,394.43 mi (8,681.49 km) |
| Calhoun to Lovech | 5,482.36 mi (8,823.01 km) |
| Calhoun to Lukovit | 5,457.64 mi (8,783.23 km) |
| Calhoun to Lyaskovets | 5,523.49 mi (8,889.20 km) |
| Calhoun to Mezdra | 5,441.05 mi (8,756.52 km) |
| Calhoun to Momchilgrad | 5,578.81 mi (8,978.23 km) |
