| Kalajoki to Karlovo | 1,494.40 mi (2,405.00 km) |
| Kalajoki to Karnobat | 1,499.52 mi (2,413.25 km) |
| Kalajoki to Kavarna | 1,449.68 mi (2,333.03 km) |
| Kalajoki to Kazanlak | 1,496.97 mi (2,409.14 km) |
| Kalajoki to Knezha | 1,434.85 mi (2,309.17 km) |
| Kalajoki to Kostinbrod | 1,482.33 mi (2,385.59 km) |
| Kalajoki to Kozloduy | 1,415.29 mi (2,277.69 km) |
| Kalajoki to Kyustendil | 1,519.74 mi (2,445.78 km) |
| Kalajoki to Levski | 1,444.80 mi (2,325.18 km) |
| Kalajoki to Lom | 1,412.62 mi (2,273.39 km) |
| Kalajoki to Lovech | 1,460.39 mi (2,350.27 km) |
| Kalajoki to Lukovit | 1,455.59 mi (2,342.55 km) |
| Kalajoki to Lyaskovets | 1,464.13 mi (2,356.29 km) |
| Kalajoki to Mezdra | 1,459.06 mi (2,348.12 km) |
| Kalajoki to Momchilgrad | 1,571.82 mi (2,529.59 km) |
