| Karkkila to Karlovo | 1,236.31 mi (1,989.64 km) |
| Karkkila to Karnobat | 1,242.19 mi (1,999.11 km) |
| Karkkila to Kavarna | 1,193.84 mi (1,921.30 km) |
| Karkkila to Kazanlak | 1,238.91 mi (1,993.83 km) |
| Karkkila to Knezha | 1,176.90 mi (1,894.04 km) |
| Karkkila to Kostinbrod | 1,224.81 mi (1,971.15 km) |
| Karkkila to Kozloduy | 1,157.49 mi (1,862.79 km) |
| Karkkila to Kyustendil | 1,262.60 mi (2,031.96 km) |
| Karkkila to Levski | 1,186.71 mi (1,909.83 km) |
| Karkkila to Lom | 1,155.10 mi (1,858.96 km) |
| Karkkila to Lovech | 1,202.31 mi (1,934.93 km) |
| Karkkila to Lukovit | 1,197.62 mi (1,927.38 km) |
| Karkkila to Lyaskovets | 1,206.15 mi (1,941.11 km) |
| Karkkila to Mezdra | 1,201.26 mi (1,933.25 km) |
| Karkkila to Momchilgrad | 1,313.75 mi (2,114.28 km) |
