| Castelli Calepio to Karlovo | 766.21 mi (1,233.10 km) |
| Castelli Calepio to Karnobat | 870.30 mi (1,400.62 km) |
| Castelli Calepio to Kavarna | 918.40 mi (1,478.03 km) |
| Castelli Calepio to Kazanlak | 795.07 mi (1,279.55 km) |
| Castelli Calepio to Knezha | 712.54 mi (1,146.72 km) |
| Castelli Calepio to Kostinbrod | 686.53 mi (1,104.86 km) |
| Castelli Calepio to Kozloduy | 690.28 mi (1,110.90 km) |
| Castelli Calepio to Kyustendil | 675.70 mi (1,087.43 km) |
| Castelli Calepio to Levski | 765.62 mi (1,232.14 km) |
| Castelli Calepio to Lom | 665.67 mi (1,071.30 km) |
| Castelli Calepio to Lovech | 750.55 mi (1,207.90 km) |
| Castelli Calepio to Lukovit | 722.81 mi (1,163.24 km) |
| Castelli Calepio to Lyaskovets | 799.18 mi (1,286.16 km) |
| Castelli Calepio to Mezdra | 701.63 mi (1,129.16 km) |
| Castelli Calepio to Momchilgrad | 825.01 mi (1,327.73 km) |
